Can you think of a unique champ concept?

I was wondering what could riot possibly do for a unique design on a new champ. I came up with a few ideas but what about you?

1st idea: Famous wrestling brothers. Their ult is tag team and they can swap out and each have their own moves and health bars. If 1 goes down the other jumps in.

2nd idea: Cliche super hero. Someone who came upon some powers and decided to help people but now he's off chasing a villain in the league.

3rd idea: A spy. He can disguise himself as other units including jungle creeps and gain their auto attack animation and damage but not their abilities.