The cynics are defeated; Mamma Mia! Here We Go Again has won the war. On track for a near-$40m opening weekend, critics couldn't escape if they wanted to, and audiences have promised to love ABBA jukebox musicals forevermore. It's another remarkable achievement for Littlestar chief Judy Craymer, who produced both films in the expanding Mamma Mia! Cinematic Universe (with Gary Goetzman) and has been the architect of bringing ABBA's music to the stage and screen for more…