We speculated at the time the device was the TVA, and Marvel has practically confirmed it with the first Deadpool & Wolverine trailer. The same logic can apply to Iron Man for Secret Wars.

Tony Stark and his amazing Iron Man flight suit, an impressive piece of wearable tech designed and built by Stark alone, is a near-perfect Marvel comic-book confection -- just the kind of thing ...

Following is a transcript of the video. Narrator: If you look at Iron Man's first suit, the Mark 1, and compare it to the hero's nanotech suit from "Avengers: Endgame," a lot has changed.