Infinity War co-director Joe Russo said fans should be prepared for some 'intense surprises'

Over the last 9 years, the Marvel Cinematic Universe has seen some loses, from Scarlet Witch's brother Quicksilver to Thor's mother Frigga to Agent Phil Coulson (he just wanted Steve to sign his Captain America card, sob), we've said goodbye to a few heroes, but for the most part, death has evaded the core Avengers. Then again, they haven't met Thanos yet, and as we've learned, death follows that guy like a shadow. With Avengers: Infinity War looming, it's a real possibility that our favorite heroes aren't all going to come out of this superhero team-up alive. Infinity War co-director Joe Russo at San Diego Comic-Con on Saturday (July 22), said that fans should be prepared for some very "intense surprises." "It'll be emotional for a lot of different reasons," Feige said following Marvel's star-studded presentation in Hall H. "As all our films try to do, we want to have the laughs, we want to have the heart, we want to have the humor, and Infinity War has all of that." Avengers: Infinity War hits theaters May 4, 2018.