Hal Jordan Will Cameo in Justice League

Zack Snyder has said on multiple occasions that there will be no Green Lantern in the upcoming Justice League flick. After all, the first Aquaman poster did read Unite the Seven. And it can’t mean just Unite the Seven Seas under Atlantis, can it?
It makes sense to have a Green Lantern in Justice League, since he is one of the founders of the New 52 superhero team (the DCEU is, apparently, based on it). And having to wait until 2020 (when Green Lantern Corps is released) or 2019 (when the second Justice League is released) seems like too long to wait.
So Hal Jordan has to appear when Apokolips’ armies arrive this year, right? After all, he is rumored to be the most experienced Earth-based Lantern, right? Who knows, maybe Zack Snyder will make a last minute change (as he did with the Flash cameo in Batman v Superman: Dawn of Justice) and introduce the superhero, thus truly forming the Justice League.
And there is also this pic – as some say, Green Lantern is in the official teaser poster for Justice League.

