[Jamesy]

I think there would be very few housemates who could go back in on CBB.

The majority of well known former housemates would be best suited to an all star series.

For example, someone like Allison Hammond would fit well for CBB, not an all stars series. But someone like Nikki Grahame would suit well for an all stars series, not CBB.

On the whole if any oldies go in it should be for an all stars series, not CBB. Lets just stick to z-listers who have never been on Big Brother for that.