There is no way Omega is going over at the Tokyo Dome. The fact if he'll even main event is still in question. Unless Gedo wants to continue down the path of 'if we hot shot you the title that makes you an instant star' and give it to Omega to have Omega drop it back to Okada who feuds with Naito.
Omega going over at the Tokyo Dome would be like Dolph Ziggler main eventing Mania and winning the title.
What? If anything it would be like Aj main evening mania