Re: What next for Mass Effect?
^ I think co-op would cripple an rpg to be honest. Either the second player would be totally superfluous or they'd mutilate the single player experience to shoehorn it into the game.
I do like the idea of the Firefly-esq format, but they're still need to be a central plot and arcing story. It can't all just be about getting work and choosing between being an "honest" smuggler or a cut-throat pirate. Basically you'd need something to give you a reason the keep playing other that an endless series of sidequests.
Sure the new game will be different with co-op, but that doesn't mean it would be a bad game. Just different. It can also have an central plot with side quests. The main quest can be nuetral with different consequences depending wich side you pick.
All that is necessary for the triumph of evil is that good men do nothing.