Its likely Dues Ex or one of the Edios properties. I'm assuming by unannounced, they mean it hasn't been annouced for the Wii U as opposed to a brand new game reveal.
In the best case realistic scenario it will be a new chrystal chronicle game in the single player vein of chrystal bearers. That would sell me on the Wii U, even though I've never played a chrystal chronicle game. I'd also prefer to Play Lightning Return on the Wii U, so hopefully that gets announced too.







