I think the reason why the graphics of the next Melty Blood game looked like that its because Ecole is still using the old Sega NAOMI arcade hardware...Unless they migrate the game in a much more poweful hardware like Lindberg or the PS3-based arcade board.....
Anyway i hope they would finally release Act Cadenza Version B on the Playstation 2 ASAP,but for now im hoping that the next Melty Blood game would be great...