Rikiya Koyama, a voice actor for Tales of Vesperia, posted information about the game on his blog
blog.livedoor.jp/ earlier this week. During a guest appearance on a web radio program he mentioned the success of
Tales of Vesperia on Xbox and PS3, and mentioned that it would next make an appearance on the wii.
Namco Bandai haven't announced anything about a wii version of
Tales of Vesperia. It's unclear if he let slip the possibility of a Wii version before the official announcement, or if he meant to say
Tales of Graces. The latter will be released on Wii in Japan on December 13.