The 2014 hit film, The Lego Movie is in talks for spin offs which feature some of the characters of the film. One of the characters that are getting spin offs is Batman. Batman already has appearance in every medium from video games, toys, Lego play sets and even Lego video games. He is getting ready to have a Lego movie released. Ninjago is another character that is getting his own movie. Both spin offs are planned for release in theaters with Lego Ninjago planned for September 23, 2016 and Lego Batman for February 10, 2017.
There is also an official Lego Movie sequel under the title of The Lego Movie 2 which will be released on May 25, 2018.
As for Lego Batman, there are many directions that they can go with this character. It has actually been discussed by some who work at North American Spine. One idea is to reference the different eras of Batman which include the Adam West, Michael Keaton and even Christopher Nolan era.