Book gate is not dead. Luann is suppose to expose Carole's ghost writer on part 3 of the reunion, that is, unless Bravo edits it out. So Aviva wasn't lying after all and the link below exposes the drama brewing behind the scenes pretty well.
http://allaboutthetea.com/2015/08/25/aviva-drescher-finally-vindicated-in-the-book-gate-scandal/