In the Jedi: Survivor trailer we are teased with a new character. Nobody knows anything about him. But, I was reading Star Wars: The High Republic books and discovered an illustration of a Soikan, a species which looks exactly like him. A quick search, I am pretty sure he is in fact a Soikan. Soikans are only mentioned in the High Republic series, which is not commonly known. Not only that, the character is wearing High Republic Jedi robes in the trailer. So what I think is that he’s a Jedi from the High Republic Era who was somehow kept alive until now [ stasis? Not sure about this part ]. Many people suspect that he’s a High Republic Jedi but since Soikans are hardly ever mentioned, I may be one of the only people to know this. [ if I’m correct, which I think I might be.]
Image comparison of the new character [ image screenshotted from the Jedi Survivor Trailer ] with an image of Velko, a Soikan and Ssker, a Jedi in High Republic robes. [ focus on the robes! Image from The High Republic: Starlight Stories ] Also the Wookieepedia description of a Soikan said “gray skin, gray hair and lavender eyes” which the character definitely has. Velkos hair looks blonder, it could just be the light or she could just look different, the way humans do.