Like it, but since Hollywood is tragically unlikely to go for Starro the Conquerer, how about The Centre?
It would differentiate itself from the Avengers by giving the heroes one big threat to combat, rather than an army of mooks. It's rooted in a story revolving around the sort of tensions regarding superheroes place in the world that'll likely define the upcoming DCCU, and as a silent figure, it allows the heroes to remain center-stage. More importantly than any of that, it would allow a major motion picture in which the Justice League fought dinosaurs.