DC says one major character will be outed as gay in June. https://designtaxi.com/news/352579/Is-The-World-Ready-For-The-First-Gay-...
My guess is Wonder Woman ... Unless Robin is a superhero. Who's your guess?
I hope it's not Wonder Woman...she's one of the few well-known female comic book heroes and I just think would send a message to girls along the lines of: "Don't be too strong or people will think you are a lesbian." (Not that there's anything wrong with that!)
OK...I just checked the article you linked to...it says: “One of the major iconic DC characters will reveal that he is gay in a storyline in June.” So it must be a guy.
Robin sounds like a good bet. Or maybe someone else who is not one of their top headline characters. I am not up on who all the DC "iconic" comicbook heroes are...how about Aquaman?