Monolith have announced, at GENCON, that Batman the Boardgame will be coming to Kickstarter in February 2018. And they are looking at a 10 month turnaround in the the production of the game, much like Mythic Battles: Panteon. So, it should be on your shelf's by Christmas 2018.
The price point, kicking around at the moment is $130 for the base game. This higher price is due to the royalty's that have been and have to be paid to Warner, for the licence. A serious amount of money has already been invested into the project. Meaning that this could be a make or break project. As Fred Henry (the designer and founder of Monolith posted on BGG) said that if it makes less than than Conan ($3million) they would pull the plug...But I can't see that happening, can you?
...It's Batman!