Oh actually I forgot about audio, I would love to see some more AI voice stuff done. I think, for AAA at least, they should be paying actors to do their usual lines that are scripted, then also pay them to make a voice model for that character using the lines they recorded for the game already. Then we can still have the same kind of spoken dialog we have today, except they can also have the characters respond intelligently to events in game, or even talk to the player through mic like that one game I saw recently.

Then hopefully there will be some free use voice stuff that indie devs could use to accomplish similar stuff, kinda like mixamo does for animations