So, here is my personal view: 50.000 sounds decent, and I guess this is what it is considering the Wii U is dead like a doornail and counting the censorship madness in which was one of the main reasons I ignored the Game and I guessed, since this is a niche Game, a lot of other people have done it the same way.
Of course 50.000 sold copies so far is miles away from a good number. The Game bombed in Japan, which was quite the foreshadowing. I guess Nintendo made quite the loss with Tokyo Mirage Sessions. Just look at the edits made to the Game. For their stupid edits, they had to rewrite Dialogues, call the developer to re-program the new Outfits (also designing the new fugly Outfits) and, most likely the most expensive part, get many of the Voice Actors back to re-record 300 Lines of Dialogue to fit the new cesnsored/edited (call it what you want) Script. No one can tell me that this release paid off in any way for the Company.
Anyway. I think, a Sequel is still possibly on NX. Maybe an NX Version with more or even restored content for the West? Go for it, Nintendo, show us you learned something from your mistakes.