That remains to be seen. It's still possible. But right now, PS4 is selling much better than PS3 when launch aligned in the rest of the world than it is in Japan, where is selling less than the PS3 when launch aligned. Japan is becoming a smaller and smaller percentage of the Playstation install base, hence you see less and less Japanese oriented games. They'll never die completely, but the Japanese publishers will focus more on the core Japanese franchises (like DQ, FF, RE, etc.) while they chase western buyers with more western oriented titles. It may not be long before AAA titles meant for Japan only are virtually extinct, with publishers focusing more on the global/western market.
It'd be interesting to see what the Japanese indie scene is like for PS4. As that is where the quirky Japanese titles could still flourish. LOTS of those in the indie Japanese PC scene, which I expect should also appear on the PS4.
Regards,
SB