Well, despite Tom Holland running off the stage when asked this question point blank, the solution is clear: Spider-Man comes back to life in the upcoming Infinity War sequel Avengers: Endgame. So even when fans witnessed and mourned the death of Spider-Man, they knew that somehow the upcoming Avengers: Endgame would undo this. Regardless, it is sure to be an emotionally powerful and momentous narrative event that sets the stage for the Marvel film series going forward. To explain, let’s make a hypothetical using the Harry Potter series. But the art of the Harry Potter series is that it builds up the dread of this threat slowly.
Source: Forbes January 20, 2019 21:07 UTC