Eurogamer:
The biggest problem with The King of Fighters XII is that it feels unfinished. The combat is fun and robust but not particularly innovative. The Critical Counter system feels like an afterthought and doesn't really compare favourably to Street Fighter IV's Focus Attack or BlazBlue's Drive System. Also, whether because of time constraints or an attempt at accessibility, many of the characters feel a tad diluted. So with Capcom offering more accessibility and Arc System more innovation, it would be hard to recommend XII to casual or hardcore fighter fans that might only have time for one game. It'll be interesting to see what SNK can achieve with a little more time. "Are you okkkayyyy!?!" Yes, but you could've done better mister wolf.
GameDynamo - "Fighting games have enjoyed a period of spectacular growth after being a nearly nonexistent genre for so many years prior. Because of this sudden growth, we're seeing a lot of companies taking different approaches to the traditional fighting game formula that has stood since Street Fighter II first came onto the scene."
Star Trek Online developer Cryptic has ruled out the possibility of it releasing a sequel to the game in future years - telling CVG it would rather constantly update its existing MMO.
I'm glad they aren't going to make a sequel. The current game is unfinished and flawed, they need to fix that first.
A sequel is the last thing people are thinking about right now, it's an online game! You don't need a sequel, you can just keep building the game and change the story arc for as long as you want.
The Start Screen reviews King Of Fighters XII for the PS3. They cover how far fighting games have come and with the showing that SNK Playmore's KOF XII, how far we need to go. The game was seemingly released incomplete with an time trial for an Arcade Mode and a seemingly broken online mode. Did the 772 MB patch help?