I've seen people talk about not wanting to thrust KO into a huge spot too early. I have no concerns about that at all. Admittedly I was a giant Steen mark, but this isn't a Reigns situation. Owens is arguably the best all around active member of the roster right now, the only thing he doesn't have is "the look" which he will never have. Reigns conversely looks pretty and that's about it, and that's the problem and the reason for it being "too early" for him. He's still pretty green, particularly when being looked at as a main event talent.
Owens while still "new" to WWE isn't green at all, he's been around the block for years honing his craft. There's no need to wait for the guy to get better, he's already the complete package. Give him a big Mania program and win that he can hang his hat on and he'll take it to an even higher level. The only thing Owens doesn't have right now (again excluding the look because that isn't happening) is the resume in WWE to back himself up, the sooner that gets built up, the bigger and bigger he's going to get.
Strap the rocket to him and let it take off I say.