I currently plan on doing the following...
Rikka Takanashi - Chuunibyou Demo Koi Ga Shitai
Yuffie Kisaragi - Final Fantasy 7
Asuka Langley Soryu - Evangelion 3.0
Battle Bunny Riven - League of Legends
But I still kind of want to do...
Lulu - League of Legends
Remilia Scarlet - Touhou Project
Miku Hatsune (some variant) - Vocaloid
Everything except Rikka is still a maybe.