Personally I would either want them to work on something else besides KOF to expand their products to something more then KOF, Metal Slug, or Samurai Shodown, or get a third party involved in making something new like Dimps helped Capcom make Street Fighter IV. Having as many IP's they have available yet only using a couple is not good business.
My hope would be Mark of the Wolves 2 since it is sought after, but Art of Fighting 4, Baseball Stars 3, Last Blade 3, or any other number of titles would be fun to see.