Michael Jackson ‘s estate is facing a new wave of molestation allegations leveled at the late pop star, this time from four siblings from New Jersey who say they were groomed and abused for years and that the many handlers in Jackson’s entourage willingly enabled it all. The lawsuit by the four siblings — three brothers and a sister — was filed in February in Los Angeles federal court. It gained attention on Friday after the plaintiffs gave an extensive interview to the New York Times about the alleged abuse and the legal manipulation that the family claims they endured at the hands of the Jackson estate, long after the superstar’s death in 2009. The complaint names the Jackson estate and the attorneys who lead it — John Branca and John McLain — and private investigator Herman Weisberg as defendants. The complaint asserts that Weisberg and other lawyers affiliated with Jackson were falsely presented to the Cascio family as representing their interests in negotiating a settlement with the estate.…