It was just a few months ago that writers Seth Grahame-Smith and David Katzenberg began making the push to reunite Keaton and Burton for the sequel, saying at the time....
“When Warner Bros. came to us about it, we said the only way we’d do it if we got Tim [Burton’s] blessing and involvement, and we got that, and the star of the movie has to be Michael Keaton as Beetlejuice, and it’s a true continuation 26 years later. Not just throwing him in as a cameo going, ‘Hey, it’s me. I endorse this movie.’ We’re not there yet [with Keaton] because we don’t have a film to present to him.”
Keaton soon followed, but Burton has been less certain. He took on the Keane-family drama Big Eyes as his next project, and is also attached to direct an adaptation of Miss Peregrine's Home for Peculiar Children, although The Wrap suggests it could be getting bumped in favor of something else. It likely won't be Beetlejuice 2, though, and apparently Burton has no idea what he'll work on next. Whether or not this is a good idea is another story. Burton's most recent films have either been remakes or retreads of old ideas, with the biggest complaint that the spark of creativity he once had isn't there anymore. He hasn't had a hit since Alice in Wonderland, so in a way it could be just the right time to revisit one of his most cherished characters. Burton's only made one other sequel in his career, Batman Returns, and frankly I can think of a million things I'd rather see him do than bring back Beetlejuice. Nor am I convinced that Burton's hardcore fans will turn out for it since they totally ignored Frankenweenie which was the director's personal pet project.
