Here's who to bring back:
Ax8
Agrias Oaks (Finat Fantasy Tactics)
Akane (Ar tonelico 3)
Alkaid (.hack//G.U.)
Alys Brangwin (Phantasy Star)
Aqua (Kingdom Hearts: Birth By Sleep)
Ashley (Luminous Arc 3)
Asuka Kazuma (Tekken)
Avril Vent Fluer (Wild Arms 5)
Bad Girl (No More Heroes)
Brigitte "Rosie" Stark (Valkeria Chronicles)
C4
Celes Chere (FF VI)
Chris Lightfellow (Suikoden III)
Cissnei (Crisis Core -FF VII-)
Clair Lasbard (Star Ocean: Till the End of Time)
Eilie (Suikoden II)
Elika (Prince of Persia)
Fx4
Faris Scherwiz (FF V)
Fatima (Luminous Arc 2)
Fee (Atelier Iris 2)
Fran (FF XII)
Hildegard "Hilda" Valentine (Shadow Hearts: From the New World)
Hildegard "Hilde" von Krone (Soul Calibur)
Izuna (Izuna)
Jessica Albert (DQ VIII)
Kasumi (Dead or Alive series)
L7
Lady (Devil May Cry)
Lady (Shadow Hearts: From the New World)
Leblanc (FF X-2)
Lenneth Valkyrie (Valkyrie Profile)
Lightning (FF XIII)
Lucia (Shadow Hearts: Covenant)
Lulu (FF X)
Mx4
Mai Shiranui (King of Fighters)
Marivel Armitage (Wild Arms 2)
Meryl Silverburgh (Metal Gear Solid)
Miranda (The Legend of Dragoon)
Naomi Hunter (Metal Gear Solid)
Nina Williams (Tekken)
Oerba Yun Fang (FF XIII)
R6
Raquel Appleseed (Wild Arms 4)
Rayne (BloodRayne)
Refia (FF III DS)
Regina (Dino Crisis)
Riddel (Chrono Cross)
Rinoa Heartilly (FF VIII)
Sx7
Selphie Tilmitt (FF VIII)
Selvaria Bles (Valkyria Chronicles)
Setsuka (Soul Calibur)
Shalua Rui (Dirge of Cerberus -FF VII-)
Shurelia (Ar tonelico)
Stella Nox Fleuret (FF Versus XIII)
Subject #20 (Resonance of Fate)
Tx5
T-elos (Xenosaga III)
Talim (Soul Calibur)
Thage (Eternal Poison)
Tifa Lockhart (FF VII)
Tira (Soul Calibur)
V4
Vanessa (King of Fighters)
Vanessa (Luminous Arc)
Vanessa Lewis (Virtua Fighter series)
Velvet (Odin Sphere)
Xiao (Dark Cloud)
Yuffie Kisaragi (FF VII)
Zafina (Tekken)