China's fully celeb editions were always kind of weird structure wise, but did have some great challenges. My caveat is how fully of a TAR experience producers would be willing to go with it.
Another topic is who would fit the definition of a celebrity. I think we have yet to have a traditional reality show crossover, like US and Canada, with BB or Survivor contestants cross-polinatiing into TAR. TAR OZ did have a DWTS pro as part of the cast the previous season, would they qualify as a Celeb. Would national athletes qualify as celebrity. As I am a rare defender of TAR 28, that is not something that I would mind.