Argonia ( Black Marsh )
Hammerfell and Daggerfall
Other ( Not Skyrim, Cyrodil, Morrowind, but a calamity of multiple provinces )
All of Tamriel
Elsweyr or the Summerset isles, it seems as If they are going for a anti thalmorian presence, so maybe rebellions in Elsweyr or invasion/ war on the Summerset isles.