The team that works on the mainline Elder Scrolls games hasn't so much as touched MMO or GAAS games - they've been working on Starfield which we know next to nothing about, but there's been no indication it's an online game. Even before that they made Fallout 4 which was a traditional singleplayer game.
ESO is by ZeniMax Online Studios and FO76 is by a separate studio inside Bethesda Game Studios. Nothing to do with the team that works on mainline TES and FO games.