Bethesda makes other games as well, have you heard about the Fallout series? it would upset a lot of fans if they weren't to make another Fallout game
Actually, the FO fandom would recjoice (the Old Bloods, at least) if gamesas announced that they wouldn't make another FO game. FO3 is only popular with previous fans of the Elder Scrolls series and people who've never heard of Fallout beforehand. And New Vegas was developed by Obsidian using the (mostly) original Dev team of Fallout and Fallout 2. Anyway, that discussion is way out of the lines of this thread and subfolder.
Or maybe the Aldmeri Dominion will rise to power in Tamriel while the Human Empire finally collapses for good?
Maybe. But all the info we have indicates they're seeking to ascend all of their members by effectively destroying Mundus as well as most people living on it. No two ways about it, the Aldmeri Dominion WILL fall in a future game, it just depends on how close they are to reaching that goal at the start of the game.