You’ll have to find the post but there was a video up with things being proposed from a second Cata survey which included gauging interest in legacy raids being scaled to remain current content.
Also, I guess welcome back
EDIT:Cataclysm Classic surverys are a go
Here’s the thread on the video, YMMV.
Depends on what versions of raids and heroics are available on launch, highly likely we may end up with post nerf versions of the content. Which, if I may put my tinfoil hat on, would open Cata up to fitting easier with a continuing alpha/beta dungeon model. I won’t die on the hill of that theory at all though, just a thought.