The new "Avengers 4" theory offers an exciting history of time travel – BGR

In the five months since Avengers: Infinity War I've seen many fan theories about what had just happened in the MCU and what we might see in the next Avengers 4 after. Some are dream stories that break the heart, while others are more meaningful and are extremely elaborate and well explained. But the next, who has time to travel, must take the cake because he is watching the new film from a solid point of view, the characters are arcs.

This is how Reddit user Ramennov starts the Tale of Two Timelines fan theory:

When presenting fan theories for movies, especially well-written movies in a series, it's important to take into account the arcs of character and ensure that our theories are consistent with them. This is especially true for the MCU and theories for Avengers 4because they will have to conclude the arcs of several key characters developed for more than ten years.

The theory suggests that Iron Man and Nebula will each undertake their own journey. Tony Stark will travel back in time to make sure that Thanos Snap never happens, while Nebula will chase her father, with the same goal in mind.

Dr. Strange is the key to Stark's new arc, because the theory says that he voluntarily gave Thanos a copy of the Stone of Time, the stone itself being sent on time to Titan for Stark to get it.

[The] The best option was to allow Thanos to succeed for two reasons: that he let Titan believe that he had won and that he stopped pursuing the Avengers, and that the Snap would lead Tony Stark to fully realize the consequences of his ego and his guilt. Tony will sink into despair until Time Stone reappears and Tony, familiar with the Stones and new hope, uses it to go back in time.

Throughout the MCU, Tony is cursed with the well-intentioned need to protect the world but being totally incapable because of his ego and guilt. His actions dissolve the Avengers and render them unable to defend against Thanos. Tony's worst fear (the Snap) finally gives him the clarity and sense of purpose he needs to do the right thing and change the key moments in MCU history using Time Stone. .

Ant-Man, who is stuck in the quantum realm, will probably use time vortices to understand what's going on and help Stark en route.

Nebula, meanwhile, will seek that elusive revenge she was looking for.

At the end of War of infinity, Nebula stays behind Titan after the Snap. It is no coincidence that his bow is incomplete, and the fact that he is one of the few characters in the film has allowed him to gain in importance. The arc of the nebula is connected to Gamora and Thanos. Nebula's relationship with Gamora has shifted from antagonism to compassion, with Nebula worrying about Gamora's safety. Indeed, she is crying Gamora after Thanos has declared to have killed her. This relies on the unresolved animosity of Nebula for Thanos that she hosted through the MCU. I speculate that Nebula will almost certainly seek revenge on Thanos and that she will leave Titan to look for him shortly before the reappearance of Time Stone.

Nebula's quest may even force Thanos to seek help from the Avengers, according to the theory, while Nebula will become an unintentional villain as she will eventually brandish her father's Gauntlet.

Stark and Nebula would both try to solve the same problem, but only one of them can succeed. And if the Avengers have to win this fight, only Tony's solution is viable:

Nebula and Tony will both try to stop the Snap from happening, but only one can succeed. It must be Tony. The rewinding time of the nebula before the Snap leads to two results: an infinite loop in which the Avengers are still dissolved and ineffective against Thanos, and Tony has prevented going back in time. Tony will eventually unite the Avengers and, in his schedule, Thanos will be defeated on Earth when he comes for Mind Stone. The Snap will not only be canceled, but will be prevented from happening in the first place. The older heroes (at least some) will die bringing back the new heroes, giving the public a moment of passing the torch. After their success, Dr. Strange will use the stones of reality and space to bring Time Stone back to Titan, making sure his current schedule will happen (Strange is ready to give time to this infinite loop as this also protects). Tony's success also prevents Nebula from grabbing the gauntlet and dissolves its "present" timeline. Note that Tony's actions only succeed in building sufficient defense on Earth and will not affect events beyond the Earth. This means that all the characters who died before the fight on Titan will remain dead, because Thanos had to arrive on Titan to recover Time Stone.

Fan theory also suggests other interesting details, such as Clint's entire family being Snapped, or Hulk and Bruce Banner finally solving their brewing conflict. In the end, someone will die, the Reddit user also designating Captain America and Tony as characters likely to perish while saving everyone.