Well, I guess Boise is east of the Pacific.
That's a Really Big East.
Boise State would be a football only school. Possibly it would re-join the WAC for other sports. Ditto with Air Force.
The big advantage to Boise State is joining a conference that has AQ status. Of course, the big advantage to the Big East is that Boise State would help it retain AQ status.
The rumor is that while the football program will go to the Big East Conference, the rest of the athletic program is seeing membership in the Big WEST Conference (Long Beach State, Pacific, UC Santa Barbara, UC Irvine, etc.)