This whole generation has sucked for a lot of my favorite games from last gen.
Dev times have gotten so long you're lucky to get more than one game in a franchise like Arkham. Or the game ends up stagnating over time and ends up like Mass Effect Andromeda.
The only games still getting regular releases are stuff like Assassin's Creed which I don't have time to play anymore since they're so gigantic now.
Even Arkham Knight was a struggle for me to 100% with how ridiculously numerous the riddler challenges got along with stuff like clearing out the enemy outposts (forget what they're called in AK) and other side quests.
I doubt that has any bearing on the continuation of the franchise on consoles.
AK is one of the best games this gen for me, it is the tightest structured openworld game made, they pulled off the quality of linear storytelling in an open setting, and the quality is maintained throughout. The camera work, seamless transition from gameplay to cut scene, the way his gadgets beep and sound as they open up, shut down, the sublime art direction, atmosphere and animations are some of the best in the business, I can't believe a follow up is still up in the air. If WB Montreal do have something in the works, I think enough time has passed where I'm itching for another Batman game, so fingers crossed we go back to Gothem. I also think if it is a new Batman it's going to be a much more of a drastic update then their previous release, it's been almost 4 years.