An exact release date hasn't been announced yet, but it will be sometime in 2018. Suzi Yoonessi will be the director, Caitlin Meares and Kyle Mack are the scriptwriters. Ashley Tisdale is producing along with her sister Jennifer, and Amy Kim and Jaime Burke. Production is going to be handled by Blondie Girl Productions and WB. Here's the summary as well:
Before their eventual team-up with Scooby and the gang, bright and optimistic Daphne and whip-smart and analytical Velma are both mystery-solving teens who are best friends but have only met online — until now. Daphne has just transferred to Velma’s school, Ridge Valley High, a tech-savvy institute with all the latest gadgets provided by the school’s benefactor, tech billionaire Tobias Bloom. And while competition is fierce among the students for a coveted internship at Bloom Innovative, Daphne and Velma dig beyond all the gadgets and tech to investigate what is causing some of the brightest students in school to disappear — only to emerge again in a zombie-fied state.