I agree, it's an interesting theory, but it's got no proof in the trailer, only the leaked documents from last year, which obviously isn't official. Indeed, we'll see how it goes.

being one who uttered this theory, i can just tell you where it came from for ME:

some features of the trailer suggest some continuity in personnell from the pre- to the post-nuke parts (like the dog's "memory flashback" counter cut scenes, it's behaviour of familiarity towards that power armor etc). the post-war parts now sees them stroll around the same areas we saw nuked before without anything like rad protection, so we can assume either a rad proof dog with an android vault boy (which i don't), or that quite some time has passed between the pre-and post-nuke scenes.

so, to fit that (assumed) personal continuity (where i personally think the vault dude = the missing baby from the pre-war crib) with that (assumed) time passed, cryotech's just the explanation at hand.

aparts from half a zillion vault experiments i could easily come up with for a bunch of frozen people ,

there's at least 1 vault with cryogenic equipment i know of confirmed, that's vault 112 (the one with tranquility lane from fo3. and happens to be just 1 above 111)

The dog both pre and post war....
Is it the dog or a dog?

We checked, the dog only appears in the post war bits.

Also, stasis from past games and cryostasis are not necessarily the same thing.
Yes, Tranquility Lane had people in VR simulator stasis, but unless I'm mistaken, there is nothing to show that it is cryostasis.

Cryostasis means that all of your bodily functions (including electical impulses in the brain) have stopped. This would mean no VR interaction.

Any reason Vault tech or the nefarious shadow powers wouldn't want a control group of vault dwellers who haven't lived generations in the Vault, haven't been subjected to any interference, and who, for all intents and purposes, think the bombs just dropped yesterday? How do they adjust to going from a Beaver Cleaver perfect world one minute to the Wasteland with deathclaws and supermutants the next?

I would also imagine the long-term residents of Tranquility Lane wouldn't have bodies to support actual wasteland life any more. The VR could have been keeping them just barely alive enough for the brain to function, like Mr. House's chamber.

I think this is the case - in Vault 112 you can see the original bodies of the people in Tranquility lane by looking in the pods, and all the people inside the pods are incredibly old, like House.

The point I was trying to make wasn't that it DOESN'T fit into the lore, I was trying to say how Bethesda, given their track record, most likely wouldn't put any thought or care into making it fit.

Why does it not fit into the lore?
Each new location, and more specifically, new vault- sealed and isolated- is a chance to add to the lore, without relying on any other lore, aside from the vaults not being as advertised.
Some vaults are not designed to fail. Some are.
Some are science experiments that have nothing to do with the vault failing, or being a control.

I did find this...

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Honestly at this point I have to give absolutely -0- credence to any previously leaked documents, its fun to speculate but sometimes its a bit obsessive that you would sit down with a pen and stacks of the fake and check off which ones had the most things right, and when someone starts trying to prove there speculation is "real" well to put it mildly If anyone I have hired over the years were to pull that kind of stunt, they would be out of a job and any prospective employers would know why.

Well it's technically illegal to blacklist employees, in some states at least, not that that keeps people from doing it.

To the matter at hand though. I do think that not considering implications for things like androids is a problem that Bethesda may have missed. The practical application for androids that are indistinguishable from humans are very low. The only thing I can think of is spies or dopplegangers. It actually does make sense in FO3 that the railroad would want to alter memories so that they don't remember where they were. I think that is the story in the game, but I don't remember it exactly.

An example of a good reason to have human-like intelligence is that they can react quickly to new situations. But as far as appearance, that seems like something that might limit the work they can potentially do.

http://fallout.wikia.com/wiki/Tranquility_lounger

All the cryogenic tech that they have is pre-war (to my knowledge, so correct me if i'm wrong), and it's all flawed as you mentioned. House would die the moment his body was exposed as would the inhabitants Tranquility lane. They would last a little longer than House but without the life support systems they would inevitably die.

This is because it's not cryostasis at all. It's a form of stasis, true. But it's VR and life support, essentially.
I gotta keep thinking that cryostasis stops all body functions. Therefore, no need for life support and no ability to use a VR apparatus.

The whole premise of http://en.wikipedia.org/wiki/Cryonics is essentially that you are dead, but your brain is locked in the exact state it was in at the start of the process (with the goal that it will not deteriorate) and you can be thawed and resuscitated later.

Here's what I think, if indeed the trailer characters (father, mother and child) do indeed survive and get frozen:

You start a new game. Either a: you pick your gender, and play either as the father or mother depending on your choice, or b: you pick your gender and the baby is whichever you choose.

You're a secret agent from the Enclave that was preserved pre-war through cryogenics.

AND the Enclave returns in full force to invade Boston because they survided through cyrogenics. You side with your shadow government or fight against them

Sounds pretty solid from a plot thought up on the quick minute

Well the obvious point would be how would they know how they react once they leave the Vault, once the Vaulters leave the Vault the experiment is over....also it would the one of the most benign experiment the Vault Tech (or shadow powers) sicko scientists came up with.

One question I have is was there any real attempt to gather the data from all the experiment vaults or was it just some evil scientists fantasy project.

I really don't understand where the belief that the family survives comes from as they keep dying with the baby in the mother's arms whenever I watch the trailer.

If cyrogenics is a major part of the origin story, the main character would have to be in the vault pre-nuking to turned into a popsicle, not as irradiated bones or dust scattered around the vault entrance.

As I has wrote elsewhere on the forum, it could be a way to resurrect the Enclave as you would expect that if centuries long freezing was possible the Enclave would have exploited that capability rather than waste it on one vault population.

Oh sick thought.....what if the cyrogenic vault was simply meant to be one of a network of storehouses for transplant donors for the Enclave, maybe the object wasn't to preserve the Vaulters themselves, but simply keep the bodies functional for the future needs of the Enclave population, maybe the MC is simply a freak event in that his/her brain survives the deep freeze.

Just because they got hit with the blast wave doesnt mean they die.https://youtu.be/paCUhiUxxIw

It was right next to them. Not a definite kill, but highly likely.

I just don't think so, not at least for the father. Just look at the trailer in general. It starts off showing you the past with a guy and his family, then the nukes fall, then it shows you the guy walking to his future. The dog is just a hook. Honestly, you dontthink it's the same guy?

aside from the vaults that are actively conducting experiments, i dont see much scientific value to many of the vaults. VB was going to attempt to explain them as designed to see what it would take to leave the earth on a space ship and colonize mars, or something. But that still wouldn't satisfy me. Namely because none of the experiments are geared towards that, and the elapsed time it would take to glean any data would already have everyone isolated from the world to begin with, making it all moot.
Vaults as experiments were a "cool" nefarious retcon that never got fleshed out right.