If they made them into summons...
Squee made Ultima, Chaos, Zeromus, and Mateus Palamecia (also technically ExDEATH) into summons for Final Fantasy XII.
If they continued this trend for future installments, who would you like to see become a summon and what do you think they would look like?
Villains are pretty much the easiest to guess for since they summon would probably just look like whatever beast they could transform into (i.e. Seraph Sephiroth
http://img1.wikia.nocookie.net/__cb2...irothFFVII.png, Genesis Avatar
http://img3.wikia.nocookie.net/__cb2...Avatar_TCG.png, Angeal Penance
http://img3.wikia.nocookie.net/__cb2...enance_TCG.png, Griever Ultimecia even though it's more or less Maduin
http://img2.wikia.nocookie.net/__cb2...III_Sketch.jpg, Meltigemini
http://img1.wikia.nocookie.net/__cb2...i_FFIX_Art.jpg, Lifeform Hojo
http://img3.wikia.nocookie.net/__cb2...jo_Artwork.jpg, Arch Azul
http://img2.wikia.nocookie.net/__cb2...ul_Artwork.png, Omega Weiss
http://img1.wikia.nocookie.net/__cb2...ga_Weiss_1.jpg, Seymour Natus/Flux/Omnis
http://img3.wikia.nocookie.net/__cb2...-enemy-ffx.png
http://img1.wikia.nocookie.net/__cb2...-enemy-ffx.png
http://img4.wikia.nocookie.net/__cb2...r-Omnis-1-.png, Final Aeon Jecht
http://img2.wikia.nocookie.net/__cb2...inal_Aeon2.png, Vayne Undying
http://img1.wikia.nocookie.net/__cb2...xii-battle.png, etc.) Some characters already resemble summons. Vayne Novus resembles Titan.
Some characters don't seem as though they'd be as passable as summons. Some still have transformations (Vincent'shttp://img3.wikia.nocookie.net/__cb2..._FFVII_Art.jpg
Limitshttp://img2.wikia.nocookie.net/__cb2...aos_sketch.jpg, Angel Wingshttp://images1.wikia.nocookie.net/__.../56/Seraph.jpg
Rinoa
http://th04.deviantart.net/fs70/PRE/...in-d59au2m.jpg, IX's Trancers, Black Wing Cloud, Esper Terra) others don't even have that.
What other kind of summons would you like to see?