Maybe Owen did the damage. I'm thinking that visual has a real echo of Doom's fight with Beyonder in Secret Wars 10, before he merged with him. Quite a lot of this plot is echoing Secret Wars and I can't believe it's coincidence that the two main players in Secret Wars' ending, Doom and Molecule Man, just happen to be traveling together back in time towards Rabum Alal's birthplace. If they merged it would technically be a new character of course, like Onslaught was. Misdirection.
Also the solicitations says the identity would be "revealed." That doesn't sound like something you'd do to a new character. Plus he's wearing Doom's cloak. C'mon. They at least want us to think it's Doom, even if it's another misdirection.
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