There's a trilogy box set due for release on Nov 2nd. I'll see if I can acquire one of the ads and scan it on here. But it said Sep 29th. I know, I was a little shocked myself. But I do recall someone reporting that it was possible DOTM would be released sometime in late Sep. This has been a month ago or so.
Also don't be too rattled by the Thursday release date. Here lately several major movies have been released on Thursdays (or even Fridays). Deathly Hallows Part 1 comes to mind, which I believe had a Thursday release date as well. The only reason I remember is because it caught me off guard as well. X-Men 1st Class comes out tomorrow- which is a FRIDAY. Who knows what they're thinking?
Anyways, my wife hasn't been able to see DOTM yet so the sooner it hits video the better.