What I Wanna know is are the devs gonna keep working on ESO
after it's release or are they going to leave it as a side project
And most likely if the do keep developing ESO will this give them
Any time to develop any new TES games

ESO is mad by ZOS (Zenimax Online Studio)

TES games are made by BGS (Bethesda Game Studio)

ZMI (Zenimax Media Inc) own ZOS, BGSm Bethesda Software Works, ID, and few more other companies.

Yeah, It can get a little confusing with so many Zeni's and Beth's in the names, but they are different companies, but part of the same family and ZMI is the head of the family.

BGS is still going to make TES games and ZOS work on ESO.

yes they are, bethesda have said that the single player games development won't be affected.

Its a subscription game and you're giving them the cash eqvivalent of a full AAA title every 4 month.

Damn right I expect Zenimax to devote 100% of their time on ESO.

What Bethesda do is their own buisness