grumble said:
Yeah, I'm still really curious about this. There is a LOT that could be done with a sequel. It could be like the jump from Diablo to Diablo 2.
EXACTLY my thoughts and wishes.
Branching skilltrees, more active abilities, armor and more customization, guns w/ different playstyles, gun appearances between companies more diverse and unique, more varied environments, an actual endgame for infinite replay, and hub for online meetup, more pvp options via arenas with weapon drops (randomly generated each time [rocket games spawn different rocket variants] making for more balanced combat) - like quake with infinite variety.
A lot more they could do too; but borderlands as it is is such an AMAZING base. Great gunplay and art direction, neat characters and room for more satiricial, topical, nerdy humor. <3 Old Haven
/gush
Edit:
For multiplayer or even campaign I think it'd be cool to pick a gun company to either be a merc for or have ties to. Perhaps get a bonus for the alliance or something.