Okay, In the interview he talks about Ys: Celceta winning user choice awards for the vita and bringing new users to the series (first Ys game to get user choice award ?)
This year is 26 anniversary for Ys , so they they are working on it, but can't discuss specifics yet. he does discuss the possibility of adding new elements to the game(gameplay mechanics network ) since the reception of touch screen usage was positive for Ys: Celceta on the vita.
I dunno, he doesn't say the next Ys is for the vita, but I guess it can be deduced lol, since he talks about the vita system in a good way (oled, graphics, touch screen).I always thought the next Ys would be on vita, because unlike Legend of Heroes, I don't feel the game translates well for a home console. but thats just my opinion^^