The league can add a billion dollars for expansion....but it is no increase for current schools, only the same money for the additions....it is only worth it to current members if the new members take a ten year haircut.
Is it worth it to a G5 to take such a long term junior position? You betcha.
With no network in the near term, and moderate financial gains per team with expansion, the talk will move to "diluting the brand".
The division make up may play in when expansion occurs.
Oklahoma and Texas folks will want a Big 12 south and north. And that might end up UConn, Cincinnati, ISU, Kansas, KSU, and WVU in a north division.....
The Big Texoma vs the "Others"...and that would be interesting....while the relative power of each division would switch when football segues to basketball, the Texoma could be seen as the core of the conference.
The other scenario would be splitting Oklahoma and Texas...with possibility of either replays or end of RR Rivalry.
I think that there will be a wrestling match regarding division structure....