It seems Namco Bandai registered a trademark for Lost Land Adventure in the states on 10th December. Could it be for an upcoming One Piece title? One Piece: Unlimited World Red hasn’t been announced for release on this side of the globe but with most of the One Piece games (We've already had One Piece: Pirate Warriors 2 & Romance Dawn so far this year in the EU) seeming to make there way to our shores these days, its a possibility. Maybe it’s the name given to the upcoming 3DS monster-hunteresque game instead of a whole new game? With the states getting the 3DS version of One Piece: Romance Dawn in February, its most definately not that renamed. Something for the One Piece fans out there to spend some time mulling over.
Here's a trailer for Unlimited World Red, just in case: