If both Davis and Poly join the Big Sky, it would provide the conference some stability should other members (Sac State, PSU, the two Montanas?) choose to join the WAC. It's also a good pre-emptive move to perhaps convince those schools to stay in the Big Sky, rather than consider WAC offers. I'm also seeing rumors on the Griz board that Southern Utah may be joining the league as a "full member." If the Big Sky can get to 12, they can go to divisions and host a post-season championship game -- all the while maintaining the opportunity for three non-conference games ($$$), if they so desire.
A lot of intrigue. I must say, the conference has done a great job keeping the lid on this one -- so far there have been no credible leaks.
http://missoulian.com/sports/college/montana/article_fd3e10dc-b9f0-11df-8c66-001cc4c002e0.html
PS--The Big Sky has scheduled a news conference for 5 p.m. MT, and will release some sort of information at 2 p.m.