Since C5 butchered the twist, my proposal is for a series long, half BB9 half BBUSA style twist.
Each week, in addition to the Shopping task, a challenge is held to choose a 'Head Housemate' (Term already used to describe Michael). The Head Housemate would gain several special powers.
- Live a life of luxury in the Safe House as a luxury bedroom, but retain normal interactions with the rest of the house (Possibly bringing in a friend or two) Safe House remains unlocked and part of the house but is only accessible to the HH (and possibly his accomplices)
- Ability to watch nominations. Not full on house action as that would just stop people from bitching and being entertaining.
- Save and Replace - Similar to Power of Veto in BBUSA. The HH (and possibly his accomplices) can, having watched the noms and observed their fellow HMs during normal life in the house, choose to save a nommed HM and replace them with another.
I think this would keep the competitiveness and bitching going through the HH Challenges, (which would be a mixture of physical and mental to ensure a variety of Heads). It would cause more drama and also force other housemates who would normally never be up face the chop. No more arselicking or flying under the radar - its time to play the game.