By Sam Elliott-Gibbs & Zoe Delaney & Joel Leaver & Charlotte McIntyre Celebrity Big Brother is now just one week away but there’s still much speculation about who will be heading into the house for the reality TV show’s awaited return. The show has been off air for six years year but will return next Monday on ITV. It comes after the broadcaster revived Big Brother last year, following in the footsteps of Channel 5 who had previously taken over from Channel 4. Past series of Celebrity Big Brother saw Gemma Collins uttering the famous phrase “I’m claustrophobic, Darren”, David Bowie’s death on …