Cosmic Book News is not known for their accuracy and are often wrong, plus EVS (Ethan Van Scrier) has been blackballed from both Marvel and DC due to his extremist views and ties to the Comicsgate group.

This just sounds like him trying to stir up his followers and bring attention to himself, doing his usual "Rah-rah-rah-diveristy is bad-mainstream comics are dying" shtick.

Because lords knows when Jon doesn't turn out gay, he'll claim DC changed their plans based on the 'backlash' and if he turns out to actually be correct this time, he'll just whine and complain, telling people to buy his comics instead.

So, no, I highly doubt Jon is going to be revealed as gay. And if he did, I highly doubt anyone at DC would tell EVS about it.