Well to start with there is a fear of seeing your favorite Hero dying, going by the rumors. The movie starts off with introducing each Superhero or the team of Superhero about where exactly are they now. The way they meet each other how they get along with each other.
Director, Russo Brothers has done proper justice to each and every character by properly introducing the heroes and giving them proper screen timing, the way they narrate the story is amazing.
As the story moves forward they end up killing many of our favorite characters and making you feel sad and end up in tears. But the post credit scene will surely give you a hope.
Don't wait for even a day as spoilers may start coming in. Book the ticket now and watch the most awaited movie of the decade which is surely going to smash many records.