It’s most likely going to be a while before we hear any substantial news regarding the recently-announced sequel to The Legend of Zelda: Breath of the Wild.
But that’s not going to stop fans from coming up with their own theories of all sorts.
The Zant Theory
A number of Zelda fans are adamant that Zant will have some type of a role in the upcoming game, based on its E3 2019 reveal trailer, which is said to include a few hidden notes that represent Zant’s theme from The Legend of Zelda: Twilight Princess.
In trying to figure out which Ganondorf remains the corpse was supposed to be I cross referenced the position all other Ganondorfs die in and none of them die like that.
You know who does do that though? ZANT. He does that EXACT pose a LOT. Another possibility is that the hand we see is Zant’s hand! We’ve never seen them because they’re covered by his sleeves.
I saw people speculate that the wispy green lights were likely from Midna or at the very least originated from the Twilight realm, but I didn’t want to believe it because the twili’s colour is turquoise not green, but honestly the colour teeters a lot in Twilight Princess itself so I think after doing all this Zant research i’m more eager to believe it.
That being said it’s also possible the hand belongs to Midna or a descendant of hers and rather than aiding in the revival of Ganondorf’s corpse, she is trying to stop it. Either is possible. Another thing to note is that the markings on the wall resemble the symbols you see in the twilight realm as well.