Pretty major casting update to the film situation:
Tiffany Haddish and LaKeith Stanfield are in talks to star in "The Haunted Mansion" remake.
variety.com
Illuminerdi has also provided a brief plot synopsis that quite a few articles are quoting. That being said the actual legitimacy of it is questionable:
The plot will revolve around “Gabbie, a single mother, and her young son [who] recently purchased a New Orleans estate [the Haunted Mansion] at auction only to discover it isn’t quite as empty as they expected.”
“Gabbie hires a grieving widower who works as a ghost tour guide [Ben Matthias], a psychic [Harriet], a priest, and a local historian to exorcise the vengeful spirit from the Haunted Mansion.”