Who should be next for a headhunter skin?

We already have Master Yi, Rengar, Nidalee and now Caitlyn. This means we have 3 top laners, 2 jungles, 1 support and 1 ADC. We need a mid laner to round out this team comp. Keeping in mind that this is unofficially supposed to be "Predator" themed my vote is for either Talon, Katarina or Akali.

Talon - Already an assassin type, can go invisible and reappear behind people, could have his blades reskined to look like the predators disc blade.

Katarina - Also an assassin type with the ability to reappear behind people, Could have her W, shaped like the disc blade, already normally featured wearing light armor, could have her hair done in dreadlocks, her ult could fire blue plasma blasts instead of knives.

Akali - Assassin type who can turn "invisible", wears light armor, has a mask

What do you think? Is there another champion you think would better fit the role/theme?