Theory about time travel in Avengers 4
To date, there has been no official confirmation from Marvel’s team about time travel in Avengers: Endgame.
It was that photo that sparked a series of later theories about time travel.
The purpose of the Avengers is also mentioned quite clearly, they return to the past, steal the infinity stones so that Thanos’ snap does not take place.
Time travel may disturb its rules
Time travel is one of the most difficult subjects to bring to film.
Before, the MCU had considered the issue of time disturbance and understood how dangerous it was.
The consequences of time travel are unpredictable, Mordo even said that this action could lead to the appearance of `uninvited` guests, characters who have never appeared before.
So the Avengers will create new infinity stones themselves
The key to the theories of stealing the Infinity Stones is their infinite power and they think this is the only way to stop Thanos.
Maybe superheroes will return to the past to analyze the infinity stones to create new infinity stones.
The Avengers and Guardians have had many opportunities to access all the infinity stones and they just need to go back in time to analyze them.
If this is truly the Avengers’ plan, their creation of the Infinity Stones would reverse Thanos’ snap.