depends on race how long do elves and wizards live?
Hm. It's known for a fact that Dunmer can live for at least 400 years or so, since Barenziah and her husband Symmachus lived that long, at least a few decades (possibly more, there's no information about Berry having died yet) longer in the case of the former. I'm not sure if there are any confirmed ages for Altmer or Bosmer to work with. Mages it's an open question... the only two examples of mages with long lifespans I can think of, Zurin Arctus and Mannimarco, both only lasted so long because they became undead (unintentionally and intentionally, respectively), so that might be the only way it's possible.
Spoiler for the Morrowind plot, probably don't need to hide it but I am anyway:
Spoiler Of course, importing the main character from Morrowind would work time-wise anyway - part of the main quest involves becoming immune to disease and aging. <_<
And a spoiler for the Oblivion / Shivering Isles plot:
Spoiler And the next character becomes a Daedric Prince. Maybe. And who knows what that means... :huh:
Still, no reason to bother with this... especially considering the considerable differences between the game mechanics each time. My Morrowind character would probably lose her prized spear, and the skill with that!