In a Reddit AMA Irrational head Ken Levine and level designer Andres Gonzalez revealed that the upcoming Burial at Sea DLC for BioShock Infinite will feature new gear and weapons as well as the original BioShock's weapon wheel.
Gonzalez noted that while Burial at Sea is very much about story players will have access to a new plasmid and tears as well the ability to upgrade weapons and plasmids.