No, but the next ES may very well be taking place in the first era of a newly reborn Nirn with all new lore(same universe and god structure but with different men and mer interactions).
Hey, don't state your theories as fact like this. It's a novel idea, but it's just as likely as any other conjecture being spouted about the game after the one nobody's finished yet.
That came out ruder than I thought, but it wasn't really what the poster was asking, and I don't want people to get confused with theories.