I love Fallout 4, but I think the general consensus is that it is not technically the leap that we are use to from Bethesda Game studios. I think taking the profits of this game and expanding the team at BGS as well as creating a new up to date engine that allows us to mod it is a must!
Things that are being underutilized
-Disk Space: Blu ray holds at least 50gb of free space on the disk, fallout 4 is half of that. Lets use nearly all of the space and make bigger more detailed worlds
- Destructibility: Fallout 4 does have minor destructible objects such as robots having pieces of it blown off. But I think there should be more and done similar how Dice does it, some objects can be destroyed and some cant. Also, having the ability to shoot through walls or objects can be a new interesting mechanic for fallout.
- Lighting: The lighting system is definately a step up from previous games but that are still a number of instances where there is only one light source and as as a result lights dont bounce off of objects realistically all the time. Also things like the pip boys light does not cast shadows of nearby objects which makes it feel less immersive
- Mechanics: A new engine could provide a whole slew of new mechanics such as being able to climb objects realistically or have enemies that climb things, imagine a deathclaw that can climb the side of buildings and sneak attack you when you come out of it. Or insects crawling on all types of surfaces to get to you. We could even see some sort of new transportation in fallout because time is passing and Im sure people are trying new things in the wasteland.
- AI: Fallout 4 has improved AI already and you will see enemies taking true cover, or creatures running away temporarily if you are in a space that they cant reach you. Similar to what I eluded to above, imagine if there was smart AI in which the AI trys a number of tactics to get to you or even try to outsmart you, something to keep you guessing where they are. How about a AI that truly stalks you like prey and keeps out of sight until they are in your range, or right behind you.
- Graphics: While this is not a huge focus, better graphics means better immersion. I'm not simply talking about better textures. But the use of techniques to make facial animation better or animations in general, perhaps invest in a mocap studio to bring NPC's to life a bit more. Water/Tree physics, we see water and trees a lot in bethesda games but we never see the trees bend and move realistically when wind is applied, or wind creating waves to make for a more immersive experience.
Overall I really hope that Bethesda Takes most of the profits and reinvest it in Bethesda Game Studios so they can come up to date with todays technology.