There's been two spin offs in the past, and experience tells Bethesda not to try doing any more.
Well in defense of that they were a different studio back then. Honestly it would be great to have more TES Legends and Adventures games.
The Apprentice is easily the most impressive hero to date. Just regular joe apprentice kicks the crap out of Daedra and Daedric princes with no special help from outside prophecies or anything. He also triumphs where all of the hardened Imperial Battlemages fail. Wish I played it
Cyrus is simply badass and there is no dancing around that. He is the one of make way. In other words gtfo or get trampled.
Besides it could take place in one city or in some way that truly gives us a real feel for the TES universe. Imagine a life sized TES city. Climbing all over the tops of Valenwoods Falinesti in search of the Imga rebellion(LOL!!). But seriously it could make this game so much more interesting and actually create some characters with real...character.