https://www.cbr.com/brian-michael-be...han-interview/

New interview about the fallout of Event: Leviathan. Here's the parts that we care about:

"Yeah, any character that was touched by this story, there's going to be fallout from," Bendis explained. "This mystery is solved but, past the mystery, a lot has happened. They were semi-successful in their quest that Leviathan has arrived and is now a power in the DC Universe and that comes with a major shift in how everyone's doing business; so that's number one. Everyone also has to deal with the fact that Leviathan set some of them up, like, why does the Red Hood get set up for shit like this? And that does eat at the character but also lets the character know 'You have a job here. You have to take care of Leviathan because they are coming after you and they've made that very clear and they're doing the opposite of what you want in the world.'"

"As far as Jason goes, I will say I did the most research of all the characters on Jason because I wanted the red herring to be honest and, at the same time, respectful to the character and have the character walk away as almost one of the big heroes of the story," he continued. "If you really look at it, he kind of walks away the most unscathed and it certainly points Jason in the direction of what he has to do next."

TLDR: Sounds like the events of E:L are going to have some sort of impact on Jason going forward, be it in his book or others.