Assuming this is true, and it likely is, I can't say I'm completely thrilled. I'll be excited to see Ken's new design and find out what he's been up to, but I'm not sure I like the idea of Rise and her Persona fighting. No doubt P-Studio has an idea to make it work, but I dunno...
I'm still holding out hope for the P4 villain, Margaret... hell even Takaya would be a fine addition to this fighting game. I know Rise is popular, but if her then why not Fuuka too, since she's also a support character/navigator? Well, as always I await the final product and see what ATLUS has in mind...