The Okami Franchise is more of a Playstation thing...
The most likely Capcom Choices are Megaman, Zero, Ryu, or Chun-Li
Also... Customization in a Namco Bandai game?
Well ya... Namco has been doing that since the ps2 days with Tekken 5 and Soul Calibur 3
However, I am expecting more along the lines of what Playsation allstars or Street afighter x Tekken when it comes to "customization"
Every character will have ~3 costumes
Ie. Classic Mario, Sunshine Mario, Dr. Mario
And you can tweak the colors of the outfit
Ie. The color of Mario's Hat, overalls, gloves, shoes, t-shirt, sunglasses, head piece, or stephescope... that's my thoughts on that