Speaking to Gamespot at PAX this weekend, Epic Games' president Mike Capps stated that a potential follow-up to Bulletstorm has been shelved, citing PC piracy as a big problem. The game apparently did not live up to EA's expectations.
"We made a PC version of Bulletstorm, and it didn't do very well on PC and I think a lot of that was due to piracy. It wasn't the best PC port ever, sure, but also piracy was a pretty big problem."