Yeah, it's nothing to get that worried about really. I'll just go calm down with my new favorite brand of ice cream:
On one hand, both costumes would be neat (assuming neither Kiryu nor Arle are playable).
On the other, that would actually reduce the chances of Blizzard Mii costumes - such as a Terran Marine (StarCraft) Mii Gunner costume - and my inner Blizzard fanboy would see that as a massive missed opportunity. (Yeah, Crash would presumably come with mainly Activision costumes, but I'd love to see Blizzard make it in somehow)