Square Enix has filed a trademark in Japan for a title called Gunslinger Stratus. A search through the USPTO found no trace of it, but that doesn’t mean anything just yet. The trademark, dug up by Andriasang, doesn’t really state much, but we’re betting it’s one of the “two to three” new IPs the firm said it’s working on. Last week, the firm listed recruitment ads for a new action RPG for PS3 and Vita, as well as another action-RPG in development, which featured teaser artwork. We’ll send a mail, but we don’t expect Square to give up any secrets just yet.