IMO it’s not worth adding except for blue blood programs. You give up the full double round robin schedule by adding 5-7, which isn’t huge but it’s something.
If it’s the St Louis, Dayton, VCU type schools…. Hard no.
The B12 has seemed to stabilize and win this last round. If it worked out differently and it was Kansas, K State, and Iowa State…. Hard yes.
If the ACC implodes and Clemson, Miami, and FSU go SEC, and UVA and UNC go B1G, and NC State and Virginia Tech go Big 12, then merging and adding Boston College, Duke, Georgia Tech, Louisville, Notre Dame, Pittsburgh, Syracuse, and Wake Forest. That would be 19 for hoops. Notre Dame as football Indy with a schedule agreement.
Football would be:
Boston College
Duke
Georgia Tech
Louisville
Pittsburgh
Syracuse
Wake Forest
UConn
Nova
Notre Dame*
(That’s 6 private schools and 4 state schools for this scoring at home).