Was definitely pumped when I heard about more AD, and since I had just rewatched all of it in December/January I was even more excited to jump in to the recut of Season 4 just out of curiosity. Starting it now, though I didn't realize that it would take over for Season 4 rather than being a separate thing, like a Director's Cut or something. So is the digital age, I guess, it just is weird to have the whole first thing gone, especially when I didn't come down on it the way a number did when it first released.
EDIT: I assume it'll come back at some point, but I just ordered the DVD of Season 4 to be on the safe side.