Redstar45
The Anime/Special's canon know it all.
Problem is that even kusaka himself seem forgot about that character most kanto dex owners show up in the current state of the Pokemon special manga.....(xy & oras arc respective)Time may have made her obscure, but otherwise I'd say Yellow has at least a bit better chance than some other characters in that series. She has the useful attributes of no game counterpart to confuse her with, and canonical abilities to power and heal her Pokemon.
That said, it would be interesting to see it incorporate other characters from there, and how much it would redesign them to distinguish them from their game counterparts.
Meanwhile, how about that Centra City? The band makes me think it's important, so who here thinks it will be the only city in the game?