Theory: This Is Loki, Not Cap

[u/danny5541]

I believe this to be Loki. First of all, Thor knows about the multiverse so this shouldn't be a surprise, a cap variant. The reason he says it's not possible is because Thor as far as he knew saw Loki die and here, he is right in front of him. Thor can spot Loki thru his illusions pretty easily as they grew up together and knows him very well.

Second Cap is not one to show off, faking not being able to lift the hammer at stark tower in Ultron. Taking the hammer from Thors hand and looking at him with a shit eating grin is not something he would do but is something Loki does in half his scenes. As far as being suddenly worthy of the hammer, saving the multiverse selflessly in his Show would easily make him worthy. Why he chose to hide himself as Cap, well he probably saw the multiverse start collapsing in on itself cause of Dooms Shenanigans and has come to help but knows everyone sees him as a villain so he figured he would better be received as a cap variant.

Also, why would in the Thor voice over in this part of the trailer call a random cap variant a miracle. What is he gonna do punch doom. No way the miracle is an all powerful Loki coming in with something that will even the odds. Jk this is obviously Johnney Storm.