I hope they don't shut down. SNK has been in the game business for a long time and created some of the more memorable fighting game characters. If the SNK president does decide to shut down that branch of the company, it would make sense to sell off the rights instead of letting them rot. At least that way the company would get some money out of them.
At the very least, I hope someone buys the rights so the KOF characters can stay around. Even if it's not Capcom.