I don't know if there really are any other than the usual ones that separate all of the provinces into their current states. The most recent one is of the current size and control of the Altmora Dominion encompassing Valenwood, Summerset Isles and Elsweyr(I believe). I actually can't find a link to it right now but I'm sure someone can point it out >.>
I'd love to see more maps for Tamriel's history. Like maps of the first Nordic empires and the spread out the humans against the elves.
Maybe even more in depth maps likes ones of the human expansion showing the exact path each race took and where they settled. Where the bretons made the split from their decendence and settled High Rock, where the Imperials really started to appear (the forming of Tiber Septim's empire I assume.)
Would be really great to see maps like these appear.