This is a tinfoil-hat, crackpot-theory-type of deal, but hear me out. When Hal Jordan was on the New 52 Justice League, Geoff Johns really pushed their relationship--in fact, it was the first relationship set up in the book. It was more pusheded than the other relationships these characters are known for like Superman/Batman or Green Lantern/Flash.
In this video below, at the 5:08 mark, the screen writer mentions that Geoff Johns told him to emphasize the Green Lantern/Batman relationship.
Now you have to ask yourself "why?". Well, part of my theory is that it pays to be Batman's friend than it does to be Superman's or Flash's. We already know that Geoff Johns is a Hal Jordan fanboy. And many suspect that he doesn't like Batman for some reason. What if that reason was because he's frustrated at how Batman is used to sell everything? What if he tried to fight against the grain at first, but failed?
What if he realized that by hitching his favorite character to Batman, his favorite character might get some of the benefits that Superman has--like the demand for more and more Superman/Batman stories? That has to boost Clark's profile.
You may be thinking that this can't be true because Hal was removed from the league. Well didn't he leave in one of the most heroic ways possible?
Didn't Clark tell Diana that they could contain Despero if Hal returned to Earth? In fact, Johns revealed that
Hal Jordan will be back in Justice League next year.
Expect Hal's return to be some glorious way that he saves the Justice League. Expect the Batman/Green Lantern relationship to be central to his Justice League run.
But don't worry, Superman fans. Geoff still like Superman. When he can, he tries to set up a Superman, Batman, Green Lantern trifecta of popularity.
It kind of feels like Johns is trying to turn Batman into Captain America, Hal Jordan into Tony Stark, and Superman into Thor. A new Avengers Prime/Trinity, leaving Wonder Woman as Superman's bloodlusted girlfriend rather than a perfect role model for girls everywhere.
It's funny though, because that suspected Batman hate does still pop up from time-to-time in the words of Geoff's favorite avatar.