I dunno I'd have to see more of her to me she seems a bit stuck up and dismissive but then again so did Davina as the series went on. I think Channel 5 will probably surprise us all and get someone unexpected.
Could Alan Carr be a possibility even know he's on Channel 4, he wouldn't be too famous would he? Well assuming this Channel 5 BB will be as big as the previous Channel 4 BB then perhaps a bigger name could be good.