We could use a young character but hopefully not giddy and annoying (Yuffie, Eiko, Rikku).

We are starting to loose more unique characters...

FFVII - Quite a few. Cait Sith, Red XIII, Barret, Vincent
FFVIII- Aside from personality, none were extremely unique when compared to others. They were all Humans!!!
FFIX- Practically every character except maybe Dagger and/or Steiner
FFX- Here's where we start to loose them - Lulu, Kimarhi, Wakka
FFXII- Fran, the only one really. Everyone has blonde hair (except maybe Baltheir), everyone is human (except Fran) plus no real character development doesn't help either.