As stoked as I'd get seeing the OmegaMan battling Balor, Joe, Breeze, and others, I can't shake the feeling that they wouldn't know what to do with him.
Omega in Japan is money. He's massively over, just became the leader of the biggest faction there, and he seems motivated. No doubt he'd be excited to join the WWE (who wouldn't?) but he'd have to take a backseat to the bigger names and I just don't see him doing that after everything he's accomplished.
Either way, I'll watch anything he does. Omega is Gawd.