Whitney Houston’s estate announced that it will release a new album of previously unreleased songs and a hologram tour. The seven years since Houston’s death in 2012 have been “emotional,” and the estate turned down multiple offers and projects. The estate has now lined up a list of projects to honor Whitney Houston, including an album of unreleased material, a hologram tour, and a possible Broadway musical, former manager Pat Houston told The New York Times. “Before she...