Avengers: Infinity War left the heroes of the Marvel Cinematic Universe in disarray, and the Infinity Stones in unknown location. Now that Thanos has achieved his goal, the remaining heroes will have to devise a way to take down him down in Avengers 4.
One fan theory from Everything Always imagines how the Avengers could take the fight to Thanos, with Tony Stark retrieving the Infinity Stones.
The issue is that there needs to be a device to contain the cosmic artifacts. Instead of trying to forge a new Gauntlet, the theory suggests Tony would create "Thanos Buster" armor that's capable of tapping into the energies of the Infinity Stones.
Considering Tony may have a lot of time to himself on Titan (Nebula being the only one remaining to keep him company), he certainly could devise something so outlandish. A sequel video also suggests Tony would be able to create the armor with the help of other characters like Eitri the Dwarf King and Shuri.
Footage from Avengers 4 screened at CineEurope 2018 in Barcelona is rumored to have depicted Tony & Co. gathering alternate versions of the Infinity Stones from across the multiverse, so this theory certainly may be plausible. However, it will likely be quite a while longer before we can can consider this anything more but inventive, and intriguing, conjecture.
Directed by Joe and Anthony Russo, Avengers 4 arrives May 3, 2019.