EXCLUSIVE : Zero, meet Casper . In a very competitive situation involving a five-way bidding war, Disney+ has landed a new series take on Casper the Friendly Ghost. The live-action project comes from Rob Letterman and Hilary Winston , executive producers of another Disney+ supernatural series, Goosebumps ; Steven Spielberg , who executive produced the 1995 Universal movie Casper starring Christina Ricci; and UCP , a division of Universal Studio Group. There are no details yet about the new Casper, described as a modern update on the classic ghost story, which is in the early stages of development. It is believed to have a dark edge to it the way Wednesday tackles the Addams Family lore. Letterman and Winston are writing, with Letterman set to direct. The duo are executive producing with Spielberg.…