First off, good job asking for this kind of stuff. Shows you really care about your boyfriend and are in it for the long haul....I think.
Baradium pretty much covered everything. My bet is it's gonna be tied up in the legal system for a while, but we'll eventually be one list. The arbitrator has said he's sticking with this one till the end, and he's on our side. The fact that management has basically thumbed their nose at him probably won't help one bit. AFAIK, ALPA hasn't filed anything in court, but that's probably b/c they wanna make DAMN sure they've got their case sewn up. At this level, they can't afford to make mistakes.
As was mentioned, the final integration will probably be weighted towards the PCL pilots, but I expect there will be "fence" agreements to keep the movement going at both places. Translation: seniority wise, there might not be much of a change in base operations. The fences would keep senior PCL guys from bidding on Colgan planes and vice versa. The only big question I have is where the Q400s would go. Technically, the money used to acquire them was shadily shifted over from a monetary award that was directly acquired via a services agreement with Northwest. Which means that money SHOULD have gone to the Pinnacle operation, not to buy airplanes for Colgan. So, the union might go after the Q400 to get that on the Pinnacle side of the fence. It'll be a while before any of that shakes out, though.