theres also alot of people (like myself) who would prefer it never be mentioned again after hearing about it constantly sense freakin Morrowind heh.
I'm also one of those people. I mean, honestly, I'd love to visit Akavir, but not for a long, long time. I want to explore the rest of Tamriel before I even think of going to Akavir. And honestly, once we finish all of Tamriel, we could easily cycle through all of the provinces again and it would still be fresh and new and the plots could still be amazing. We have plenty to work with as is.
The best source of information on Akavir is the book, http://www.uesp.net/wiki/Lore:Mysterious_Akavir which appears in Morrowind and Oblivion. There's also the http://www.imperial-library.info/content/tsaesci-creation-myth-and-we-ate-it-become-it.