The baddies of Borderlands have already written a laundry list. You've got your skags, your spider ants, your rakk, bandits, soldiers, various bloodthirsty robots (still wondering how that one works), threshers, pirates, crystalisks, and plenty more. For the most part, this is an entertaining bunch, but some members are showing their age. Skaggs, rakk and the many iterations on "dudes with guns" have been with Pandora from day one and often make for the least interesting fights. It's not that they need to be done away with - these are the classics, after all - but that they could use a tune-up. Improved AI and dynamic enemy behavior is every bit as important as entirely new enemy types. Rakk and skags, in particular, could use some predatory competition - as they both seem to dominate their respective domains - but there's also never a bad time for crazier robotics.