Think back to BATMAN V SUPERMAN, where you can draw a straight line from the $250 Million production budget to the fact that WB required 30 minutes to be trimmed for theatrical release. (Although I love the theatrical version, I admit that general reception was better for the extended cut.) SUICIDE SQUAD also sported a hefty $175 Million budget, with the studio execs stepping in to make sure it was audience friendly. And then of course there's JUSTICE LEAGUE, with a budget reported around $300 Million and the most extensive levels of studio interference. Regardless of what you think of the executive's decisions, we can all agree that they were understandably motivated by a desire to protect that large investment (even if several of their actions may have had the opposite effect).
WONDER WOMAN had a more modest budget and was also given more creative freedom. In the future, I think some of the films -- especially the ones that are more street- or city-level in terms of their heroes and villains -- would be very well served by budgets in the range of $80 to $125 Million. Let the filmmakers have freedom to do what they can with that money, and then see how the audiences react. If it's only $400 Million at the box office, great. If it strikes a chord and runs for $800+ Million, even better!