Gail Simone, before giving up her stint on Birds of Prey, clearly left a back door open for Gordon to get up and walk. In fact, I was a bit surprised when Gordon didn't start waltzing about, as the story all but took us right up to that point. My assumption at the time was they were leaving an option open for her return as Batgirl, as it seemed the Batgirl situation since her departure has been a bit of a mess and resetting the status quo would seem attractive.
Now with a Batwoman in the mix, I'm not so sure.
So, as cynical as it may sound, things happening similar to what you propose wouldn't surprise me at all if they came to pass.
