I haven't seen/heard anything related to 500 airplanes or anything mentioned about a "super-regional" anywhere on any official form of company communication. The ONLY place I've seen/heard of it is on this website. So unless someone can produce evidence proving otherwise, I say you guys all got duped by someone who just made it up...
It was in an official memo in your e-mail box, through a link on the front page of ourasa in huge letters, and I'm pretty sure it was announced at the get together this past week.