Browsing through various threads, I see some people saying that Delta flying for XJT (ASA) is diminishing because of the new 50-seat rule, and others say that XJT is going to become tremendous for both Delta and UAL, flying mainly 700/900s on the Delta side and who-knows-what for UAL. I even saw that XJT may begin flying for American Eagle (!)?

Just opening up a friendly discussion, what do you all think will happen?