The trailer for Avengers: Endgame showed Tony Stark stranded on an alien spaceship light years from home. It seemed to be out of fuel and, as he explained, life support was running low. That, combined with the fact that Robert Downey Jr.'s contract with Marvel Studios expires with Endgame has given many fans reason to suspect we'll be seeing his final appearance as Stark this April. If that were the case, you'd expect Spider-Man: Far From Home to touch upon his death. After all, Tony was a huge influence on the MCU Spider-Man and his death would surely hit the young hero hard.