Geneva Lay

I’m curious why Colby Donaldson, from Australia Outback season, has never been back on? I would love to see him compete again! I continue to watch, and be fascinated, by this show. I did think this new premise is a little....unfair?? To take people who have already won a million and make the prize 2 million...I would have preferred that to be a prize in a season that had new competitors as well, but I will still be tuned in every episode!