Recently freed from a crushing $4 billion debt, MGM’s new studio management in February told Hollywood’s talent agencies it was moving ahead with plans to reboot five movie franchises, including Steven Spielberg’s 1982 horror hit, Poltergeist . The word is that the studio has offered Pulitzer-prize winning playwright cum screenwriter David Lindsay-Abaire ( Rabbit Hole ) the job of reimagining the paranormal classic. Lindsay-Abaire confirmed he’d been approached by MGM and offered the job, but emphasized that no deal had been reached and stressed that he was not yet even sure he wanted to take it. (Abaire’s latest play, Good People, starring Frances McDormand, just wrapped its limited engagement on Broadway a little over a week ago; both People and McDormand are nominated for Tony Awards.) It’s understandable of playwrights to be wary of big studios. But MGM’s new bosses — Spyglass Entertainment principals Roger Birnbaum and Gary Barber — are co-financiers who know something abou