This should help you keep your sanity:
- Just because it is a continuation of a long running and much loved series, there is no guarantee that the game play will live up to your vision of its potential. In my own experience, Oblivion was a flat out dud compared to Morrowind. Played Morrowind for about 5 years and Oblivion maybe 5 weeks (that ended in disappointment).
- An MMO version of the game would be similar only in lore with game mechanics so vastly different you'd never guess it was a TES game by its features.