You're telling me that Bethesda as a publisher who is publishing their stuff on Steam as a platform, for a game which uses Steamworks, does not know when the release is going to be live, and when they contact Valve the response they get is "haha whenever we feel like it, too bad"? Seriously?
I don't think Valve knows exactly, because, unlike what lots of people here seem to think, it isn't as simple as pressing a button to allow us to download it. I'd much prefer late updates from Bethesda that actual tell us something, then to have them tell us they still don't know every minute.