With regards to the link posted above by Fredward, shown again http://imgur.com/wA4QYC9 - I don't think that's our male protagonist. I think it's his son. Let me explain why:

Bethesda have used many 'symbolic' references throughout their previous games, and are known for their love of easter eggs (Todd, if you're listening, I'm in no way implying that you guys sit around all day eating chocolate!) I have even suggested a few of these as they could apply to Fallout 4, as seen in my http://www.gamesas.com/topic/1523978-fallout-4-timeline. Two of these references are dates directly linked to the events of Fallout 3 and New Vegas. They are:

2258, the year that the Lone Wanderer was born.

2281, the year that the Courier ended up being shot in the face and then buried alive.

These two dates correspond with what I believe are the dates that the protagonist's spouse and child are taken out of stasis. There are several similarities that would suggest a connection, the two most obvious of which are 1. being 'born/reborn' (into vault 101) and 2. cheating death (not dying after being shot in the face).

Now, assuming that our couple are both around 35 at the start of the game, this would mean that our protagonist as per the trailer would still be 35 upon waking (not counting his time in stasis), his spouse would be 39, and their son would be 27. This would make the in-game difference between the protagonist and his son a mere 8 years, and so they would most likely be very similar in appearance. Also, given the 'journey' we are taken on by our post-war dog starting at the player house, it would seem that this is to mirror the viewpoint of the protagonist and his family as they approach the vault, and so an 'error' of not hiding the player seems unlikely. Finally, our protagonist would not have 'become' the post-war survivor until well after this point, and so the vault suit wouldn't make sense either.

So this mysterious person standing outside of the fence must be someone else, someone we haven't seen yet. In other words, our protagonist's grown up son, standing, watching, waiting. I think that Bethesda may have just sneaked the game's main antagonist right in front of us in the trailer...

They have already stated that the major details of Tactics are canon and it would provide them with an already established faction with different power armour to the CWBOS, a different mindset (leading to conflict with CWBOS) and a reason to have super mutants in the game, also there is the robots link between Tactics and MIT, its very easy to come up with a plausible reason that the MWBOS would be interested in Boston due to MIT.

There are plenty of options of how Tactics ended so Bethesda could take what they wanted to make a new faction of BOS in a similar way that they created the CWBOS.

By the way,regarding the story,what do you guys think about the explosion of the institute shown in the gameplay trailer?

This could have been an attempt to wipe out the Institute's HQ at MIT, but my guess is that they also have Harvard University, as well as other possible sites.

gkk7z said "This could have been an attempt to wipe out the Institute's HQ at MIT, but my guess is that they also have Harvard University, as well as other possible sites."

Puts a whole new spin on academic infighting.

Harvard always had it in for MIT. Would only be worse after 200 years. Time for a final solution.

I hope the Insistute where I study doesn't share the destiny of MIT in the eventuality of a nuclear Armageddon.But then again,you'd have to really have a surplus of nukes to waste them on Italy.

It could be similar to F3 where you given the choice of who you want to nuke from orbit......or maybe its a failsafe measure for the Institute to ensure the loss of their facility doesn't benefit the aggressor.

During https://youtu.be/rRh5D6UecR0?t=12m interview with Pete Hines, a comment is made about running around the wastes as a very old man, and it sounds like Pete actually lets slip about the protagonist's age. For more information to back this up, see the OP of my timeline thread, which you can find http://www.gamesas.com/topic/1523978-fallout-4-timeline. Hope that helps

Might simply be the default player character used to focus on area during the cut scene, possible they planned on doing shot from another angle first.

Pretty much as equipment used making movies shows up sometimes.

During the interview, Pete refers to our player character as being '235 years old'. If we take away the 'generic' figure of 200 years that the devs are telling us (they won't officially reveal the dates just yet), we are left with 35. It's the way he says this that makes it sound like he accidentally 'let slip' the protagonists actual age. Also, looking at both characters at the start of the tutorial, 35 would seem about right. 35 was also the exact age of the two androids developed by the Institute as featured in Fallout 3. If this is the case, then our player character would be 35 years old when he entered cryostasis, and also 35 years when he leaves the vault. This is because, for all extents and purposes, his body has not aged whilst he was in stasis.

Now if his spouse was 35 at the time she entered stasis, and she is woken up 4 years before her husband (as I have suggested in my timeline thread), that means at the time our protagonist leaves the vault, his spouse would now be 39, as she has aged an additional 4 years.

As for their son, who is around six weeks old during the tutorial, the date I have suggested that he was woken up was 2258, which is 27 years before the protagonist. And so, again, when our protagonist awakes, his son is 27 years old. (Note that this principle works whether we play as the mother or the father, in the case of a female protagonist, she would be 35 and her husband would be 39)

Alternatively, he may have been revealing how long the game is set after Fallout 3. Let's say the protagonist was thirty and the game actually takes place in 2282. Having a newborn at 35 is not out of the question, but still somewhat older than normal, so I wouldn't be surprised if they are supposed to be younger.

I am wondering if the BOS guy is the slighty different BOS symbol is a portrait of the bad guy leader.

IF MWBOS had continued to evolve as an expanionist power drafting in Tribals, Super Mutants, Ghouls, Robotic forces and maybe even absorbing the Enclave forces in Chicago, then maybe they changed the symbol as a break from their old traditions.....maybe they have even had a name change.

Or perhaps the modified symbol represents his position in BOS.

There are many people who have children well into their 40's, I suppose a lot of it depends on career choice and other factors.

With regards to the interview, it did seem like a very direct reference. It would be a bit like if you were to help refurbish a classic car as a surprise for, say, a teenage nephew who has recently passed his driving test, and you've been working on the car for ages. You're then in conversation with said nephew, and you inadvertently say something about 'the car' in a way that sounds totally out of context. The nephew figures out what you've been up to for the last couple of weeks, and the surprise is blown.

Basically, I think that uncle Pete said a little more than he intended!

I'm not saying that 35 is out of the question, I just wouldn't be surprised if they were younger. And I'm not saying Pete didn't slip up, just offering a different interpretation of what it could mean.

According to the Wiki......

I hear what you're saying, but there is actually evidence to support the idea of them being 35 years old, as seen in http://www.gamesas.com/topic/1523978-fallout-4-timeline thread.

Its three super mutants wearing armour that resembles power armour (one with an artifical leg), there are also sighting in the trailers and E3 footage as well.....as to why, it may be a sign of Midwestern BOS (who could recruit Super Mutants), or it could be they are using parts from salvaged Power Armour.

It's been prudent since probably WWII (and maybe even WWI) to make command staff not stick out too much amongst the rest of the personnel, as such conspicuousness attracts snipers and other subversive agents of warfare. Remember in Forrest Gump, when Lieutenant Dan got on Forrest's and Bubba's case for being a little too respectful of Dan's rank?

Say the game is set in 2285 and the protagonists were 27. Would this be unbelievable if one or both had retired from the military and they literally just had a newborn child? I don't think so. Seems like a reasonable timeframe, but I acknowledge it's equally plausible as them being 35. As for evidence of them being 35, I'm not sure I understand the relevance of Harkness and Armitage being 35 during Fallout 3. How is it significant if they were made 200 years after the protagonists were born? This doesn't seem like evidence, just a coincidence if your theory is true. Seems like the only evidence is that Pete may just be repeating the simplified "200 years" thing and adding the age of the player. What I am suggesting is that he may be taking the actual time frame of 208 years(or whatever) and adding the player's age. After reading your thread, I still don't see any evidence that points one way or the other, unless I am missing something or misunderstand.

I'd still expect something similar to Lyons' Pride unique symbol rather than the rank and file symbol.

I'm assuming just from the wealth of types shown in the E3 garage footage that there is a 'bad guy' power armour faction, maybe the Enclave, maybe MWBOS or maybe someone totally new.

I say this because despite the E3 'lets shoot lots of stuff' footage, I expect CWBOS to be the 'good guys' along with the minutemen making it hard for them to be the source of most of your Power Armour parts.