Isn't the lack of JRPG's this past gen a result of Japanese game developers struggling with HD development and HD development costs? Theres a reason why they are only now getting around to announcing Persona 5 and other big name Jrpgs.
Not all developers are created equal. Monolith Soft spent a lot of time on R&D for HD development before the WiiU was even announced.
This is a big reason their first HD outing is so much more advanced that most RPG makers are even now.