Everyone knows that Avengers 4 is going through reshoots right now in Atlanta, and today the content of some of the reshoots has leaked out and it hints at a famous confrontation from the Infinity Gauntlet comic.
Karen Gillan posted to her Instagram story that she was going to Avengers 4 reshoots and unfinished business with Daddio. As you know, Daddio is Thanos:
In the original Infinity Gauntlet comic, Nebula played a key role in reversing the Snap. At that point, Thanos had burned Nebula beyond recognition and her cyborg body in the MCU sort of mirrors that. After the Snap, Thanos becomes a cosmic being and leaves his body. He’s so distracted that Nebula sneaks up and takes the gauntlet for herself and restores her body.
While the MCU version will obviously be different, the fact that Nebula survived the Snap and she’s doing reshoots right now with Thanos means that she will probably have a pretty big part in the conclusion of Avengers 4 much like she did in Infinity Gauntlet.