The King of Fighters 15

The King of Fighters 15 would be the fifteenth King of Fighters title, and the start of a new saga (the reason it's titled KOF 15 and not 14 is because 14 is presumably the next dream match, and I already have a KOF 14 idea on this wiki.)

Hero Team
This team was put together by the United Nations to investigate the Underground King of Fighters tournament and shut it down. K' joins the team in an attempt to force the government to give him information about NESTS and his past self. In the middle of their operation, they betray the world governments, and instead feed them false info, which leads to the governments agreeing to perform a bombing on the locations where the underground KOF tournaments are. Cain would be a character who uses his legs (like King or Chun-Li) whereas K' would be like all of his other incarnations and Casey would be a charge character like M.Bison in his SFII incarnation.
 * Cain Abraham
 * K'
 * Casey Diana

Esaka Team

 * Kyo Kusanagi
 * Benimaru Nikaido
 * Goro Daimon

Rival Team
A team of King of Fighters fans who want to prevent KOF from shutting down.
 * Rick Doyle
 * Acey Raynard
 * Rigby Diana

Kyo Fan Club Team

 * Shingo Yabuki
 * Syo Kirishima
 * "Kyoko"

Fatal Fury Team

 * Terry Bogard
 * Andy Bogard
 * Joe Higashi

Art of Fighting Team

 * Ryo Sakazaki
 * Robert Garcia
 * King

Kula Team

 * Kula Diamond
 * Maxima
 * Angel

Yagami Team
Iori plays like he did in KOF96 - XI. Shizuka would play like that but with ice and slower, and Tsumi would play like a cryokinetic version of Iori in KOFXIII.
 * Iori Yagami
 * Shizuka Kurai
 * Tsumi Kuro

Psycho Solider Team

 * Athena
 * Bao
 * Kensou

Female Fighters Team

 * Chizuru Kagura
 * Yuri
 * Mai Shirinui

Next Generation Team

 * Rock Howard
 * Kushnood Butt
 * Hinako Shijou

KOF 91 Team

 * Richard Meyer
 * Tung Fu Rue
 * Micheal Max

Rival Team

 * Kasumi Todoh
 * Billy Kane
 * Eiji Kisaragi

Ikari Team
The Ikari team joins as precaution that KOF is shut down, just in case the Hero Team doesn't pull through.
 * Ralf
 * Clark
 * Whip

World Heroes Team

 * Hanzo
 * Fuuma
 * Ryoko

Criminal Team

 * Ryuji Yamazaki
 * Freeman
 * Jack

Special Team

 * Lilly Kane
 * Micheal Max
 * Albia Meria

Neo Geo Battle Coliseum Tean

 * Ai
 * Yuki
 * Marco

Capoeira Team

 * Momoko
 * Bob Wilson
 * Duck King

Boss
A high-ranking military official who crashes KOF. Keeps talking about "their motives."
 * Osiah

New gameplay elements

 * You would have two Super Combo gauges: One that fills as you get hit (the rage gauge, and another that fills as you hit the opponent (the confidence gauge.) Each would have one super combo attached to it, and a third known as a special combo that you need both to be full to use.
 * Special Assist - If your health is at 1/3 or you have 1/4 of each super gauge, you can enter one of the command moves for any of your team mates and they will come in and do it. L1/R1 would be for your second teammate, and L2/R2 would be for your third.