Snyder's filters fit the vision of what Man of Steel was supposed to be. It was a movie surrounded by the act of holding back and discovery before dealing with a planet-wide alien invasion about 2 race's.
The tone and filter was spot on and the pallet really gave off the impression that we were watching an entirely different movie in the genre and something entirely different than what their competitors put out. I love that.
I hope Snyder gives us a different feel to this movie and stylizes it to the world-building of the universe, but I hope he doesn't shy away from making the film feel serious and doing what's necessary to make it feel like what it's supposed to feel like whether that's a gloomier pallet or not, especially considering the Bat is now apart of this world. If anything, I still think we'll get that visual style from Snyder but this the opportunity to make Superman stick out with the colors some fans want. It could make for a great contrast between the two characters.