I concur with John. ASA maintenance is already being merged with SkyWest (based on a talk by Jerry Atkins (CEO) in March 2007 with our new hire / upgrade class). He wouldn't merge the pilot groups because ASA is union, and we're not.
I spoke with Brad Holt (Chief Pilot) last month, and he mentioned that they could still combine the pilot groups, and then we'd all have to vote on a union. He pontificated that all the ASA guys would vote ALPA, and the majority of the SKW guys would vote NO. He inferred there wouldn't be ALPA.
SkyWest is taking planes from ASA now. I flew one the day before yesterday, and fly one tomorrow. The merger is taking place, piece by piece.