With the Injustice: Gods Among Us fighting came due to be released on April 16th, game studio NetherRealm Studios has released a new trailer which gives clues to the story that serves as the games narrative. The new trailer also has Hal in a few clips and what might be a reveal of a very familiar yellow ringed character at the 1:43 mark. Here's the video followed by a couple of screen captures.
Update: As pointed out, the yellow outfit clearly belongs to Hal and if you pay more attention to the video than I did you'd notice as did Random Guy that Hal is clearly a Sinestro Corps Lantern earlier in the clip at 1:33. Honest - I'm not colorblind!