Did they throw reshoots into Suicide Squad 2 because the guys who cut the Bohemian Rhapsody trailer were given authority by the studio and basically made the film a music video? lol That production was seriously rushed it seemed.
Anyway, most big productions as I understand it plan to have extra time for reshoots, though. Logan, Harry Potter, Avatar, X-Men 2, Deadpool, Wonder Woman, John Wick 2, etc. were products of reshoots. They're usually meant to give more character moments, punch up action scenes or add changes based on focus group opinions. Perhaps Shane will be toning down some of the humor?