From all the reports there were no reshoots and it's the exact same movie Boone shot back in 2017. They never got the cast back together for the reshoots before the Disney sale and apparently Kevin Feige and Disney liked the film as it was.
Agree that this is a better trailer though. For one thing it actually has the characters speaking, if only a little. And I geeked out so hard at those final shots of Magik.