This should certainly provide DC Comics' new Batwoman ongoing series some story fodder.
In a landmark vote yesterday, the United States Senate voted to allow gays to serve openly in the military, effecting ending the 17-year "Don't Ask, Don't Tell" policy. The measure still has to be signed by President Barack Obama and then there's a 60-day waiting period before the change goes into effect.
So presumably, DC Comics could and most likely will address this change at some point in the pages of Batwoman. After all, previous Batwoman writer Greg Rucka tied the character's origin up in DADT in Detective Comics (vol.1) #859, where he revealed that Kate Kane was expelled from the United States Military Academy for violation of the military's code of conduct rather than lie about having lesbian relationships.
It should be interesting to see what Kate's response to DADT repeal will be, but since the series title is Batwoman and not Second Lieutenant Kate Kane, I imagine something will happen to encourage the character to keep fighting crime in Gotham City instead of fighting overseas in Afghanistan or wherever she ends up stationed. Of course, this is a fictional universe filled with superheroes who fly and bend steel in their bare hands, so DC could simply keep DADT in effect if they wanted. They mostly likely won't, though, so Batwoman should become even more must-reading in the months ahead.