Found this on gamefaqs...
I can't post my source since it has porn/hentai. Turns out Tales of Graces Wii has two similarities to Tales of Vesperia 360.
1. References in the game's code for a character that was missing.
2. Strange gaps where a character should be in some of the cutscenes.
It could of course be DLC since the ToG has been getting a ton of it. Could just be that they planned to have another character but had to remove him before the game was finished. But after ToV, it should also be speculated that there will be a superior ToG released next year.
For your entertainment: