I remember back when Cody said that they had revealed about 60% of the roster, and if they intend to don't have everyone on TV on a weekly basis, I can certainly now believe that. So I imagine that they still have quite a few wrestlers ready to debut and they will debut them slowly.
One thing that I didn't really enjoyed last night on NXT (and I know that NXT is this thread's darling show) is that they seemed to throw EVERYTHING at you at once. And I know that it was their first show on USA Network, but for me it was a bit overwhelming and it seemed that the matches had no stories attached to them at all (and yes, I know that this was the continuation of an ongoing program, but for a new viewer this was my impression). Don't get me wrong, the wrestling was pretty good, but I wasn't as excited as I thought I would be (maybe this is the way WWE fans feel when watching AEW).
So, yeah, people have to remember that AEW is just getting started and they have to introduce a whole roster of rivalries, storylines and characters, and that takes TIME. In the meantime, they have to build new stars and cater to the already established ones. Personally, I can't wait until AEW starts because it all feels fresh to me. New wrestlers, New storylines and a fresh take on American pro wrestling is exactly what I want, and I think that AEW will give me that.