I'm being pedantic when I say this rip, but I wouldn't say unageing, since Kanaya has an adult body as seen through panels from Beyond Canon, so she definitely aged in that way rip. But anyways yeah, I do think it's kinda implied that she's immortal too? I am guessing it's like a one-time revival thing because Game Over Kanaya did die. Though then again, I don't think anyone can regenerate from disintegration, so who knows. I certainly don't lol. I wonder if aspects of rainbow drinker-ness will be explored in any way in HSBC. How easily can Kanaya be killed though non-disintegration means?