Sadly, I think it's done.
The cartoon ended long ago, and nobody even knows it existed.
I know someone already said the same thing in another thread, but that wouldn't make much sense as :
1) the game was apparently close to be finished, why wasting money by not releasing it (it's not like it had only been in development for a few months, or was an incredibly ambitious project)
2) it was delayed a second time weel after the anime ended.... and 1 month before they announced 4 different Persona games.
My guess is : project was put on hold when Index went bankrupt (doubt this was one of their priorities), and when they decided to go with the Persona push, they really couldn't afford to spare some devs for that game.
Maybe they're planning a second season for the anime, based on the extra scenario (which is apparently said to be as long as a regular RPG, according to the devs).
Though I agree, their total silence is worrying...
Hoping for >50K opening for Fossil Fighters. Hopefully, people aren't exhausted after Pokemon, Youkai Watch, and Puzzle & Dragons doing so well recently.
Watch Fossil Fighter outsell all PS4 games this week! Mwahahaha!
(Except Knack.... maybe).