However unreliable it may be (of course 4chan is not known as a source for reliable information) I find myself really liking the new rumor behind the pale figure.
Magician from GDC trailer’s name is “Nephiburoo,” he’ll be a part of a group of evil sorcerers who wish to obtain the Triforce.
The concept of a group of magic users that are attempting to take the triforce for themselves sounds incredibly interesting to me. As it does not involve another supervillain or evil king. Figures we have seen enough times in the past. But a cabal of sorcerers plotting to take the triforce, instead the usual monsters, monsterish humanoids, or another demon king. This does remind me of the earlier ideas that the villains would be the dark interlopers, as they were described as a group of magic using people who were trying to obtain the triforce for themselves as well.
"Among those living in the light, interlopers who excelled at magic appeared. Wielding powerful sorcery, they tried to establish dominion over the Sacred Realm." — Lanayru
I believe this description fits perfectly with the rumor, but then again that might have been the inspiration behind a false rumor. The Dark Interloper theory is currently the most popular one. And any leaked info that refers to it would be picked up by many. I still think that this rumor would definitely make for an interesting group of villains. No attempting to unseal some demon, or take over a land out of greed, or any of the other very common Zelda villain plots. But I have always been a fan of character villains with a strong motivation and personality, not just a typical bad guy that only does bad things because they are villains. I believe Malladus and Bellum having almost no personality at all, brought very little to the story and they are quickly forgotten because of it. This new guy in just a few seconds has already intrigued enough people into theorizing on who or what he just might be.
After all that, I still like to believe he is or is somehow connected to the gilded sword. His resemblance cannot just be a simple coincidence, and it is not like we have not seen a sword forged by Zuborah and Guborah appear in another time and dimension already.
At the same time I would love for Phantom Ganon to be the spirit of this sword as well.