I'm a DC dude because I grew up reading mostly DC and watching SuperFriends, etc. But I love most Marvel flicks and have mad respect for their vision, and willingness to gamble and how it's paid off. Actually, I give credit to Marvel that a DC Movieverse is even happening. I have faith in what WB/DC is building but I seriously doubt it'd be happening *now* without the game-changing Avengers. So yeah, two thumbs up to Marvel.
As for the OP's theory, I seriously doubt it means anything, at least as far as upcoming film projects (though I'd kill for a JJ Abrams solo WW movie, I especially dig his knack for nailing family dynamics and would love to see his take on Diana's and Hipollyta's mother/daughter relationship).