Borderlands Sequel Teased, Borderworlds Trademark Registered

GameSpot brings word that 2K Games has secured "long-term publishing rights to Borderlands sequels", which dispels any illusion that we won't be visiting the wasteland again in the future to collect a bazillion more guns:
In more welcome news, Take-Two also used the announcement to tease the prospects of a sequel to its best-selling action role-playing game, Borderlands. In a conference call with analysts, chairman Strauss Zelnick praised the game, saying it shows "every sign of becoming an important, long-term franchise." Company president Ben Feder then announced that the 2K Games label has secured "long-term publishing rights to Borderlands sequels."

On top of that little bit of info, That Videogame Blog points to Superannuation as the source for spotting a trademark registration filed by Gearbox Software for "Borderworlds". Hmm... a sequel? Or an MMO?