Wow. So that Glenn guy went out Day 2 and he'd be coming back in next Friday, Day 38. Thirty six days to wait around in some hotel or whatever just for a 1-in-5 shot to come back in...and it's a much worse than 1-in-5 shot given his age, the alpha-males he will have to compete quickly against, etc. Basically, it's near impossible for him to get through all four competitions and make it back into the game.
Then he would have to try and get far in a game where he has no social relationships or in-game knowledge (and production would have to ignore five weeks of the show in their Q&A competitions in order to be fair). And even if he were to spring from the remaining twelve and make it to the finals (a huge uphill climb), he's rightfully doomed to $50,000 since he already lost the game once.
I would just friggin' leave. We also don't even know if the competitions are just going to be single elimination or if they're going to be match-ups that are head-to-head based on the order you were evicted. If it's the latter, then he's royally screwed.
On Survivor, Redemption Island meant like two weeks in the dirt at most and greatly increasing your prize money every time you stayed in the game because you'd eventually be leaving at a much higher placement. So, you could go out first in the merge where the prize would be like $35,000 and battle back to fourth place in the game and go home with $75,000. That's a huge incentive to stick around. Whereas Big Brother is giving you another shot to basically go home with more stipend money (like $1,000 a week or whatever it happens to be).