PS3 players who downloaded the latest title update for Borderlands 2 have noticed some incredibly suggestive new trophies which point towards a DLC pack entitled“Captain Scarlett and Her Pirate’s Booty.” Just to further fan the flames, the PC version's source files contains a description for the new content.
"Legends speak of Captain Blade's Lost Treasure of the Sands," reads a description found in the code, posted in the Gearbox Forums. "Of a prize so great, that men would turn the sands red in pursuit of it. Of a pirate queen, courageous and deadly, who would stop at nothing to find it. Of a monstrous Leviathan. Of the Vault Hunters who journeyed to the desert town of Oasis, not knowing the horrors that would befall them."
Further exploration of the source files revealed mention of a new merchant who trades high-level gear for Seraph Crystals, which is a new collectible or currency.
On the PS3 side of things, the Gadabout Bronze trophy encourages you to find "all named locations in Oasis and the surrounding Pirate's Booty areas," suggesting that the DLC will bolt on a sizeable new environment (as is the norm for Borderlands content packs). It will be available as part of the season pass, presumably.
We'll keep an eye out. For now, the Mechromancer class DLC is available to download, though a minority of players have reported a resurgence of the Badass Rank glitch.