I was going to make this thread but I didn't know how much drama everyone honestly was interested in.
It looks really bad for Gearbox. The biggest developer of the 5 to touch the game, they only worked on MP. The SP was so badly done, so over budget on memory on the PS3, that the initial levels shown in teh demos had to be stripped and reworked. Then there's Gearbox basically letting BL2 eat into the development time of ACM, because they knew BL2 would make them money while ACM was going to be a train wreck no matter what they did.
I think ACM kind of exemplifies the worst case scenario for a major IP in the games industry. Farmed out to several different dev houses until it feels like a Frankenstein of a game, years of wasted development effort, demos that look far better than the actual game and everyone eventually washing their hands for the responsibility of a good game. 20th Century Fox must be fucking pissed, Sega must be fucking pissed (even though they effectively set the time table. But 6 years is insanely generous for a AAA publisher, or just about any publisher.)
It's like the franchise is cursed or something, by the last AvP2 dev. I'll probably pick it up, one day, so I can co-op with a friend. I REALLY doubt the game is going to get any significant updates beyond the pre-planned DLC (done by a 3rd dev house), but at $5 to $10 I can live with how bad it is. At $50, no way in hell.