Injustice 2 Character Reveal Speculation

As tomorrow is February the 2nd, there will be a character reveal for Injustice 2. Here are my speculation and what I would expect to see from the reveal tomorrow.

I believe they will only reveal one character, as this is only nine days after the last one. I feel as if they will either reveal the Flash or Green Lantern. The reason I say the Flash is that he has been the most clamored for, and Green Lantern seems like a likely and suitable option. I also hope and expect to get some more information about the online beta, when the next waves will go out and if there will be new characters added.