Agreed. The initial idea of KOF was to mix up a bunch of characters from various fighting games and snk did it till KOF2k. 97 had Mary and Yamazaki from FF and 99 had Xiang Fei from Real Bout FF 2. Playmore forgot that and on 2k1 they´ve just added some new crappy characters, they really could add some old FF and AoF characters that haven´t been used yet like Hon Fu, Bob Wilson or Eiji again. And it would be nice to see a Matrimelee and a ROTD team.The best way to improve this game is simple . . . add some teams from other SNK games. It's pretty much an AOF vs. FF game, with Ikari Warriors and Athena. How about some Sam Sho characters? I know it's absurd, but so is Bao. Or a Kizuna Encounter team, this would fit in better.
I would like them to take it to the next level and maybe allow some characters to get old, redraw Terry, Iori, and Kyo. Replace Kaphwan with Jae Hoon and Dong Hwan (yes, it is sad, but we all know Kaphwan is dead). Put Rock in the game. Bring back Eiji and Mr. Big. How about another boss team?
Since a new story will begin, Playmore could start a totally new game in the future with Garou characters and maybe old Kyo and Iori.
Doing some better backgrounds and musics is essential, kof 2k1 and 2k2 have awfull backgrounds that look like old SNES Takara neo geo conversions. Playmore showed us on Matrimelee that it can make some nice backgrounds and music.