Well if it is a skylanders type thing it maybe more for the Wii U because it has the NPC incorporated right into the controller to reduce the investment. Though they will also probably bring it out for 360 and PS3 to maximize the user base. I don't really see them announcing something for the next gen systems from the other two until there is a formal announcement on the consoles themselves. And the only place that can be done next month is CES 2013 which if I remember correctly will be shell of what it was last year, and Microsoft will not be attending.
http://www.computerworld.com/s/article/9222933/Microsoft_bails_from_CES_tech_trade_show_after_12
And it takes a while to put togther and "X0" type show so it a little too late to be announcing an announcment conference for next month, no to mention almost all the X0 shows were in Q3 of their respective years.
