Square Enix trademark elicits confusion over Chrono Trigger DS

Square Enix trademarked something fairly odd during E3 last week. What was it? Echoes of Time. Logical reasoning points to a subtitle for Chrono Trigger DS, but with Square Enix never stating the title was temporary, we're left to wonder.

We'll admit that Chrono Trigger: Echoes of Time has a nice ring to it. But, is it really for the DS remake? Or, does Square Enix have something else up their sleeve?