Honestly, if the game was good it has the potential to be an awesome rpg. I mean the cast is great with tons of cross-over opportunities, the stories are good if it's a mish-mash where you play through the tales of them all like SRW. The sprites aren't bad. So if it has a good battle system, it could turn out to be a great cross-over rpg.
Otoh if the game design is lazy and the battle system is boring and repetitive and dungeons are terrible, it will be a miss.
If I had the time to actually play it and it was cheaper I'd be there day 1. But I'm about 30 games-I-actually-want-to-play backlogged and $100 is a lot for a potential kuso-ge.
Apparently it's directed by the creator/director of Wild Arms 1?