This one catches me by surprise...

This is the wildest conference expansion scenario, yet.  Look at this Deseret Morning News Article:

This will be the PAC-16---if this goes through
Pacific Divsion:
Califronia
Oregon
Oregon State
Stanford
UCLA
USC
Washington
Washington State

Border Division:
Arizona
Arizona State
Colorado
Oklahoma
Oklahoma State
Texas
Texas A & M
Texas Tech

Sorry, BYU and Utah fans, you will be left out.  But the news is not all bad...keep reading.

So, what does the Mountain West do?  Wait for the Big 10 to make a move.  If a 16 team conference will work for the PAC-10, it will work for the Big 10 and SEC as well.  But, in the long run, if Kansas and Kansas State are left without a conference, as this scenario seems to indicate, why not invite them to the Mountain West?  Kansans would feel like this is a step down, but it would be a great addition to the Mountain West to have Jayhawk basketball, would it not?  Wouldn't Kansas basketball fit well in a conference that supports such traditional basketball powers such as BYU, Utah, New Mexico and UNLV?

What about Iowa State?  What about Baylor?  I would have to think that if the Big 10 follows suit, that Nebraska, Missouri and Iowa State would join that conference along with Pittsburgh and Notre Dame.  It would be a better move for the Big 10 to take Iowa State, for geography sake, than to take Rutgers or Kentucky or Louisville.

That would leave Baylor to join old rivals SMU and Rice in Conference USA.

Possible Mountain West with 14, to include Kansas and Kansas State, along with Boise State, Fresno State and Nevada.  (Add Hawaii and UTEP for 16).
West Division
Boise State
Brigham Young
Fresno State
Nevada
San Diego State
Utah
UNLV
(Hawaii, if 16)

East Division
Air Force
Colorado State
Kansas
Kansas State
New Mexico
TCU
Wyoming
(UTEP, or Houston or Tulsa if 16).

However, I doubt that the MWC will go to 16 as the memory of the old 16-school WAC will come to mind.  This MWC, with 14, would be a BCS-worthy conference and likely be a 5/6-bid NCAA tournament conference as well.  You could just expand to 12 and leave out Fresno and Nevada and put New Mexico in the West division and still have a conference that will be in the BCS every season and have at least 5 in the NCAA tourney.

Other conferences:  SEC would likely add Miami, Florida State, Georgia Tech and Louisville to go to 16.  The ACC, after loosing three would be at 9 and would likely take all of the remaining Big East Football Schools (That would be 6) to go to 15 and then add a school from C-USA to round it out at 16.  The Big East would fold and once again become a basketball-only conference.  The WAC and C-USA will raid the Sun-Belt Conference to survive and that conference would fold as well.