100% Kate will have a leading role in something post-Convergence. They can star her in an new Outlaws books, new BoP, Spyral, Checkmate, SHADE or JLD, Question/Batwoman, Wonder Woman/Batwoman, World Finest.
The *concept* was exciting, a team and Red Alice and Ragman and space adventures etc - all that stuff is awesome. The problem as mentioned upthread however is that the first two issues barely explored any of that properly. It's all stupid cartoon fights and one-liners. It's not even that the arc began en media res. It's that nothing of substance actually happens.
As Punisher already pointed out they blocked the marriage because apparently Animal Man is the only character permitted a stable relationship (it's kind a huge part of the premise). It's not a gay thing, it's a DC-characters-must-be-miserable- and-alone-forever thing.