I've definately heard this being said somewhere before, at least the part about a new ES game set in Skyrim. I also read (actually I think I heard on a video) that they had already done a copyright on the place name 'Skyrim', which began the rumours for the setting. I'm feeling a mixed bag here, since Skyrim is a pretty cool place and the Nords are human enough to seem traditional for a fantasy setting, but two things bug me.
1) ES games tend to stick with one (or a couple) of terrain types per map. So Skyrim will be snow... just, lots of snow.
2) The Oblivion game was set in Cyrodill where the Imperials live, who are the main empire of the known globe and also followed the tale of the emperor of Tamriel- how can you get more end of all epic than that? I hope they can manage...
Also; I need to get a god damn PC for this!