In a recent interview with Vandal.net, Level-5 CEO Akihiro Hino was asked his opinion on the upcoming Switch, to which he replied:

The statement casts some doubt over whether Ni no Kuni II: Revenant Kingdom,  announced last year, will be released for the Switch. Though at the very least, we can be sure of a Level-5 game for the platform at some point.

As the developer of massively popular games like Yokai Watch and Professor Layton, Level-5 has been a regular presence on the Nintendo DS and 3DS, but have often outsourced their home console titles to PlayStation platforms, especially for their American releases. However, it seems like the Switch may change things up a bit, likely thanks in part to its portable nature.