Adam Mason and Simon Boyes are scripting Fear Followers for Relativity, says Deadline. While it's not confirmed that it is a found footage-based story, it certainly sounds like it has the potential to float that narrative device.
Per the site, the film follows "four college students who run a blog for fear junkies called Fear Followers, searching for the scariest haunted houses in America. They become trapped in one house and must fight for survival while their followers watch live online." Beyond pulling in elements of Halloween: Resurrection (shudder), it sounds like it has a bit of the upcoming (and completed) The House October Built, too.
Mason and Boyes are no strangers to the genre scene having collaborated on films like Broken, The Devil's Chair and Blood River. They also scripted Not Safe for Work which is awaiting a release from Blumhouse/Universal.