In the movie "Avengers 4" from Marvel found a way to return one of the heroes who died at the hands of Thanos, and already at the very beginning of the future picture. However, the returned hero can change a lot, and will never be the same as before.
One of the most dramatic moments of the film "The Avengers: The War of Infinity" was the attempt of the heroes at any cost to save the android Vizhen in Wakanda, not wanting to give it to the minions of Thanos. The Stone of Reason from the forehead of Vigen has become the last, for which in the finale came the insane titan personally, and coolly killed the android. However, according to the new theory of some fans, the surviving characters will be able to revive Vigen, moreover, if the events of the movie "Avengers 4" will occur some time after the previous part, then this hero can already be alive and help superheroes.
Even in "Avengers: War of Infinity" Shuri, who turned out to be the smartest character of the MCU, and even cleverer than Tony Stark and Bruce Benner, suggested to separate the Stone from Vigen's consciousness, and tackled this difficult task. However, the heroine did not manage to finish it, but she did a great job of separating the neurons of Vigen himself from the Stone. Fans believe that Shuri not only shared the consciousness of the android from the power of the Stone, but also kept the mind and personality of the hero in the form of a program to revive him in "Avengers 4".
If we consider that Vigen himself is based on Jarvis, and in many respects his consciousness is a computer program and an artificial intellect created by people, it is very likely that Shuri can revitalize Vigen, having studied his body and using the results of his work. In this case, it is likely that Vigen will again become only a virtual consciousness, without his own body, and will communicate with the characters through the channels of communication, helping with valuable advice. Of course, in "Avengers 4" android can create and a new synthetic body, for example, from the vibranium, which now has free access.
It is interesting that at the time of the beginning of the Avengers 4, not only Shuri, but also Stark himself, and Benner are alive. In addition, now the heroes do not need to have time to finish their work in a matter of minutes. Therefore, the cleverest people on Earth will be able, through joint efforts, not only to revive Vigen, but also, perhaps, greatly improve it. Nevertheless, it is still unknown what exactly the sides of the deceased hero was given to him by the Stone of Reason, and how much the new personality of Vigen will change after such a restoration procedure.
In the Marvel comics Vigen is constantly destroyed and reassembled, and he often changes his form from the physical body to a virtual program. Therefore, viewers should wait for "Avengers 4" to see exactly how this hero returns, killed by Thanos.