There's been lots of rumors swirling about Jason Mamoa playing Lobo in James' Gunns new DCU movie plans. This is really what should have been done in the first place, he's a perfect fit for the character and basically infused that personality onto Arthur Curry anyway. Some say that there will be confusion with him going from Aquaman to a new comic character, but I think that audiences have seen enough actors play multiple superhero roles in the past that they can roll with it.

