I am curious what the next release will be? Will it be a sequel to Skyrim? I don't do multiple player online games.

You sound enthralled by the idea of a new game. Calling it a replacement and all...

The second they announce anything relating to their next game, you can bet a million dollars the boards will be filled with threads about it. So having to ask if anything has been said basically answers your own question. No.

Nobody knows when the next Elder Scrolls game will be announced, let alone released. It will probably be 2016 (at the earliest) before it is announced based upon the fact that Fallout 4 does not have a confirmed released date (as of yet) and probably won't for some time now.