Avengers: Endgame - 6 Big Ways The Trailer Could Be Lying To You
3. Thanos Might Not Have The Gauntlet On
Another piece of CGI trickery could be at play here. We only see a few seconds of Thanos in the trailer, but it's enough time to note that he's changed his clothes to a white knitted shirt, and he's still wearing the Infinity Gauntlet.
But this raises an interesting question: why would he still be wearing that damaged, clearly broken metal glove? He's already finished his genocidal mission so it doesn't seem like he has a need for it, and since it looks quite battered and fried, there's a chance it doesn't even work anyway.
The fact that he's changed his clothes and built a scarecrow also gives the impression that some time has passed - maybe a day or two, or even a few weeks - between this shot, and the end of Infinity War. He's removed his armour in that time, so why not remove the Gauntlet too? Why isn't he bothered that his armour is just sat out in the open, but he's clinging to the Gauntlet like it's his child? So many questions!
Of course, there are ways to explain all of this. Maybe the Gauntlet has "melded" to his hand, and he can't take it off. Maybe he doesn't want to risk the possibility of it - even in a damaged state - falling into someone else's hands. But another explanation is that the Gauntlet has been added in specifically for the trailer.
If this Thanos scene takes place after a significant time jump, but Marvel wants to mask that fact, giving him the Gauntlet makes it seem like this is right after Infinity War instead. Also, him having the Gauntlet is less spoiler-y - if it wasn't there, that might have given away that someone steals it, or he loses it somehow.