I get why
Mel and
Carabas and others think Lennox was, in one way or another, created to be killed. If you believe Azz, though (and of course, we don't
have to believe him), Lennox was originally supposed to survive:
http://www.ign.com/articles/2014/02/...ries-be-ending
Maybe you're right, if there are good sources that all these creators said they thought that the marriage should have continued in the New 52 (and not just that they miss it). I remember reading that there was a creators' retreat, shortly before the reboot planning, at which the current creators on the Superman books said the marriage was holding them back. But, who knows? That could have been a misleading paraphrase by editorial. There's also a proposal from 2000 in which Morrison, Waid, Millar and Peyer said that DC needed to end the marriage in order to "restore the Clark/Lois/Superman triangle." (
http://geniusboyfiremelon.blogspot.c...h-concept.html ) (Unless the "Superman 2000 proposal" has been debunked somewhere?)
In any case, even if you're right that the pairing happened because "higher editorial...saw reboot as chance to realize their childhood dreams," that still doesn't mean that Wonder Woman and Superman were paired because of the lack of a Wonder Woman breakout character. Again, I'm pretty sure DC sees Superman as the more lucrative property, and they're weren't going to mess with his status quo because of a perceived problem with the Wonder Woman books.
All that being said, of course, I do think that a Wonder Woman breakout character could be nice. Azz's quote about Lennox, above, makes me think it was originally supposed to be him. Maybe he'll come back and "break out" yet. I also agree with those who have said that Strife could be a good breakout character. Maybe even Zola, if having been the vessel of Athena leaves her with powers. She could be funny as a reluctant superhero.