» Thu Dec 15, 2011 2:36 pm
Basically, Nirn is protected from all realms of Oblivion thanks to Martin's sacrifice at the end of the game, Oblivion. It's not impossible for Daedra to show up, such as through summoning, and the Princes can still wield some influence. However, you're not going to see the damn things running around everywhere, doing as they please, precisely because that's what the events of Oblivion were all about preventing.
To use a Star Trek anology...
Nirn is the Enterprise.
Daedra are like Klingons trying to beam through the shields.
Martin got himself killed repairing said shields, which means you only see a Klingon or two, instead of a monstrous legion which would inevitably wreck the whole damn world...um, ship.