It's fun to speculate, lots of other crazy ideas but here are some on the WAC and WSU moving up...
http://bleacherreport.com/articles/334329-25-predictions-about-fbs-college-football-circa-2020
"13. The Western Athletic Conference will have a new golden age as former Mountain West Conference media anchors return. Air Force, Wyoming, UNLV, and San Diego State will rejoin the WAC, creating an actual stable conference with reasonable expectations and decent media markets and reasonable travel partners. The WAC will be able to go to divisional scheduling to shave off some travel costs.
12. Boise State's run of WAC dominance will come to an end. The emergence of Idaho and the resurgence of Washington, Oregon, Oregon State, and Washington State will quickly chip away at Boise's recruiting edge—eliminating the Broncos' great depth, taking away their ability to hold on to leads and dominate the second half of games vs. western opponents. They will fall out of the top 15 by 2013 and won't make it back for the rest of the decade.
11. San Diego State, Fresno State, Idaho, Utah State, and Hawaii will be the strongest teams in the WAC from 2015-2020. Look for the WAC to ride split division scheduling to earn BCS Bowl slots four times in the next decade.
10. Boise's Kibbie Dome will be expanded to seat 25-30,000 by the end of the decade. It will be considered the best home field advantage in the WAC and the loudest stadium in the conference.
9. By 2020, FCS schools Montana, Montana State, UC Davis,
Weber State, and Sacramento State will all be actively seeking WAC membership. FCS football will die a miserable, lingering death in the next decade, and schools like the above, as well as UMass and most of the CAA, will curse the fact they didn't start taking action when schools like Hofstra and Northwestern shut down their programs. Their window of opportunity will be closing."