Realm of Magic Announcement & Release?

I was talking about this with my sister when Moschino Stuff Pack came out. (The reason I think this is because usually a Stuff Pack needs a week to be 'promoted/talked about' before it releases; and Game-Packs need two weeks and then Expansions will have 4 weeks of releasing information (articles/trailers, etc) before its release date). I had told her that I think August 19-20th (this would have been a week after Moschino) will be the announcement day of the teaser and trailer and Realm of Magic will release on September 3rd. Because on September 3rd Moschino Stuff comes out for console, and I just had this odd "gut feeling", but I could be wrong and be off a few weeks or so. But that's what I'm thinking for now.