What would that look like? Will/should it happen?

I don't think it will happen. CUSA has 12 currently. Unless there are other large changes such as:

Big East not being done taking schools. They might take some MAC schools and maybe others.

NotreDame situation. If they went to the Big10, the Pac10 would react by taking two schools from MWC or WAC

Then the MWC would replenish from the WAC and/or CUSA

CUSA would take from the WAC and the WAC would take from the SunBelt.

I just don't see CUSA taking schools from the SunBelt. They would be a good regional fit, but most of them aren't too good. The only schools that would make sense would be North Texas or LaTech.

I'd like to see the following:

MWC takes Boise State and TCU.
CUSA takes LaTech.
WAC takes Idaho.
SunBelt would need Florida Atlantic and Fla-International, maybe Western Kentucky to upgrade football.

MWC has 10 and a BCS bid.
CUSA keeps it's 12 and would be a great conference
WAC would keep their 9.
SunBelt would have the needed 8 full-time and would be a nice regional conference.

This is just for fun....it wouldn't happen, but here goes...

Sun Belt USA Conference

WEST

North TX
TCU
SMU
Rice
Houston
Tulsa
UL-Laf
UL-Mon
Tulane
La. Tech

EAST

ECU
Marshall
UCF
Florida A&M
UAB
Troy St.
So. Miss
Mid TN State
Ark. St.
Memphis

Seems crazy, but that's 20 TEAMS!!!! There's no way you could have that many in 1 Conference

Just have 2 conferences...

Sun Belt

North TX
La Tech
UL-Mon
UL-Laf
Ark. St
Mid TN State
Troy State
Florida A&M

C-USA

West

TCU
SMU
Rice
Houston
Tulsa
Tulane

East

ECU
Marshall
Memphis
UCF
So Miss
UAB