[Spike]

I think it will be the entertaining housemates who will go the furthest to win their place as a housemate
If housemates do have to leave early because of this well it is only their fault and obviously didn't want it enough. Big Brother is getting tough and it will carry some casualties but thats the price to pay for an entertaining show
The tasks are probably designed so most if not all of the 16 will become housemates.