It also looks like they're planning on having individual spirit animals come out of the characters for EX moves instead of something as simple and universal as flashing yellow/green/blue/red/white, based on how Vincent works. Don doesn't have any effects to prove it's an EX move. And there's a sound cue that isn't exclusively for EX specials, but for specials in general. Yatagarasu keeps sound cues for notable things like EX specials, super flashes, successful guard crushes, sweeps (generally same animation as c.hk, but they do it slower and yell something else loudly), parries, etc.
And on anther note, Don's sharknado command normal makes them fly back in slow motion. Sharknado -> s.lp is a combo for some reason. Compared to his c.hp which sends them flying fullscreen and Don's slow ass has to chase them all over again.
Finally, make Don's AA grab a hit grab. AA grabs aren't always the best AA solutions, and being able to combo into them is fun. This is especially necessary since Don doesn't have the same variety of combo routes as Vincent. Also Potemkin, Tager, Abel, Rose, Cerebella, Beowulf, Kotal Khan, Hugo.