There's a lengthy article on Battle.net outlining changes coming to the StarCraft II user interface in an upcoming version 3.0 patch as Blizzard prepares for the release of the Legacy of the Void expansion for the real-time strategy sequel. They cover improvements intended to make a more social experience, new multiple window views, chat improvements, and other changes to help improve things. They also offer this video with a look at what's in the works. No ETA for the patch is offered.