I heard devil may cry :S
if they translate ToS2 they will do this one.
No, they won't.
ToS2 was translated because of the original Symphonia.
Nintendo also helped with translating costs with both ToS games.
It sold poor (ToS2), so Namco's usual thing is "Ok something sold poor, not because ToS2 was a really **** game (which it is), but because everyone has a brain tumour, so guess what? You all miss out now on decent games we never advertise anyway, dumb biatches, hahahahahahah!"
At least Tales wise.
Vesperia did not sell anywhere near as much as Namco wanted, either, even in Japan; until the PS3 version, which did sell very well - I wonder why. Derp.
Again, Microsoft helped with the translation and development of that game, which is why the game had such a quick English (USA anyway) release following the Japanese one.