It's success will come down to the reveals, they are throwing A-list names around like Olivia Coleman, Idris Elba & Sir Ian McKellan in the trailer, but if it turns out to be Love Island & TOWIE stars then there's a problem.
Worth watching though to see Ken Jeong's reaction to the reveal of some possibly low ranking british celebs.
I'm going to assume that it'll almost certainly be e.g. people from the Love Island etc sort of bracket / has-beens / D-F listers (at best), and so on.
People of the calibre of the names jokingly thrown around by the panel in that trailer are surely far too busy being successful at something (e.g. acting in Hollywood movies, or whatever) to have any inclination or need to do a show like this?