I have to admit that things are not looking great for a UOT release this year IMHO, no mention whatsoever at the Celebration and I can't see Disney doing another Star Wars release so soon after these digital releases.
That answer where Disney says that 'there are no plans to release them at this time' is very worrying as well. Makes me wonder whether not releasing the UOT was part of the agreement when GL sold Lucasfilm to the mouse...