Thanos is the end-all-be-all of Marvel Cinematic Universe villains. He posed a colossal threat to Earth throughout the Infinity Saga, and he made good on his reputation when he dusted half the universe’s population for several years. Now, of course, he’s well and truly defeated... but will he have the chance to lend his terror to a new threat to the multiverse? It may seem improbable, but a new trailer is suggesting just that.
