Of the teams that made the tourney the last two years, teams have moved up in conference level a ton:
Houston and BYU once in 10, twice in 20
Louisville and FAU once in 10, thrice in 20
Marquette, Creighton, Xavier, Memphis, VCU, Boise St., Utah St., Nevada, Charleston, Troy, Samford, and Oakland all once in 20
UConn, Robert Morris, Bryant, Mt. St. Mary's, James Madison, UAB and Western Kentucky all once in 10
Liberty twice in 10
TCU twice in 20
It's a mix of things, but still TBD on whether it's permanent or not.