http://www.gamesas.com/topic/1452021-pruning-threads-and-forum-update-skyrim-general-discussion/

Just noticed this on the Skyrim forums. Looks like it's not just ESO that'll be moving to a new home, and given that they're trimming now, I think the new forums will be open to the public before the end of May.

Nope, we're just doing some spring-cleaning. This has no relation at all with moving Skyrim (or ESO) forums or anything.