The latest issue of Japanese magazine Jump has a teaser for the "next" Tales game. The article states, "Next Tales of..." and calls this a "next generation Tales".
There's not much info, though. The game's platform is TBA -- ditto for its release date and price. All we know is that Namco Bandai Games is making it and that it's a role-playing game. At this point, that's all we need to know.