source...hasn't even been announced for Japan yet. I found this interesting though:
Entertainment, Namely Providing a Computer Game That May Be Accessed Network-Wide By Network Users Via Mobile Phones And Computers; Providing Computer Games Via Network Between Communications Networks and ComputersI guess this could means it will have some kind of online component?
Interestingly, the database still has nothing regarding Radiant Mythology yet.
Anyway, so far Namco USA has never trademarked a Tales name that hasn't been used in Japan, so take it as you will.