Phase Four of the Marvel Cinematic Universe has revolved around the idea of legacy, and every member of the original Phase One Avengers has a direct replacement or surrogate character coming replace them.
Horror as a genre always produce box office winners, because the visceral thrills that come with being scared out of your seat in a packed cinema remains one of the best communal aspects of the theatrical experience.
Pierce Brosnan may have admitted that he's tired of people asking him who he thinks should be the next James Bond, but that doesn't mean it's going to stop. The actor will always be remembered as one of the superior versions of the iconic secret agent, so his opinion is always going to carry plenty of weight.
Streaming exclusives tend to get more leeway in what they can present onscreen; whether it is increased violence, strong profanity, or an extended running time. Even if Zack Snyder hadn't departed the project, would Warner Bros. ever realistically considered releasing Justice League as a four-hour R-rated blockbuster? Absolutely no chance.