Personally, I think that Delta is going to consolidate as much of it's RJ flying as possible into Endeavor. I think that GoJet is probably next on the chopping block. I also think that the G7 DTW domicile was a temporary thing. Nothing much became of it and there is no sign that G7 plans to stick around there for the long haul.
My question is, how does Endeavor plan to train all of the pilots needed to take over Express Jet, Compass, GoJet (maybe eventually SkyWest, etc) flying? Seems like they'd have to train a couple hundred pilots per month! I think that the Crj-200s will soon be gone, but still, even with just the 700s and 900s that's a lot of pilots to train.