Locks
Villanova
Butler
Creighton
Possible
Xavier: XU probably gets in with one, but if they go 2-3 (beat Butler, DePaul, lose to Seton Hall, Marquette twice) they would certainly be in.
Marquette: 3-2 probably gets us in, but let's say 5-0 because it's Marquette (beat Xavier twice, St. John's, Providence, Creighton).
Seton Hall: 3-2 gets them to 9-9, which would be good enough. Best case scenario, beat Butler, Xavier, and DePaul, lose to Georgetown and Villanova.
Providence: 3-1 should be enough. Last two are DePaul and St. John's. If they can steal one at Creighton, then lose to Marquette, they may be in business, otherwise playing for NIT.
Georgetown: May need 5-0, but even 4-1 gives them a shot. Tough because of three road games (Creighton, St. John's, Seton Hall). At home, it's the bottom (DePaul) and the top (Villanova).
I don't think it's likely, pretty much everything has to break right, but it's not impossible. As long as Marquette's in I'm happy, but at this point I could see anywhere from 4-8 teams, with 6 feeling most likely (I think Marquette and Seton Hall both get in).