Spider-Man: Far From Home is the next big MCU movie coming out and many are looking forward to it since this is essentially the epilogue to Avengers: Endgame. While the movie primarily focuses on Peter and his classmates, it does feature a lot of other MCU favorites like Nick Fury, Maria Hill, and Happy Hogan.
However, many are speculating that Robert Downey Jr will have a cameo in this film and it all has to do with that one trailer scene where Peter is shocked by something from Tony's glasses. This one fan theory from Reddit suggests that Peter will see a hologram of Tony telling him to find a life that doesn't just revolve around him being Spider-Man, which is why he wants to have a normal time with his friends and the girl he likes.
During the five-year time jump in Avengers: Endgame Tony was able to live a normal life with wife Pepper Potts and daughter Morgan, proving that he could move on from Iron Man. If it weren't for Steve and the others planting the idea of using time travel, he probably would have been happy with his normal life.
Knowing this, it's easy to see why he would want to implant this knowledge to Peter. Tony always felt like Peter had all of his best aspects and none of his bad ones, which is why he mentored him for a time. Tony even made his new outfits, and it looks like he made some spare ones if the Far From Home trailers are any indication.
Spider-Man: Far From Home comes out on July 2.