I really hope they do. A world without more grandia/suikoden/lunar/chrono/Xeno is indeed a very sad world.
To be honest, the genre was never hugely popular in the west, but it remains popular in Japan. Aslong as there are enough of us to justify a localisation we should be ok. If not then it might happen like the tales series and the fans will take it upon themselves to localise the games. I doubt any other genre could motivate such action.