[MarkWaldorf]

According to the "exclusive" posted by a fansite last week, the producers are currently picking out potential housemates.

The line up the producers want is chosen, but there is still around 70 people left in the running following the latest call backs. The producers will test some of the more volatile characters further, and complete a test run before they decide ultimately who will go in.

So if this is true, this is probably where they are about now. It seems quite possible too. Hope this helps.