She has always had consistent updates, so I don't think we should worry, she'll most likely sell over 300K, even though Wiz will increase a lot by the time final sales are in.
I think for Britney to be nearly half way to 300K with only 30% of sales accounted for gives us space for optimism. At this point, for Femme Fatale to severely drop in sales tallies and end up at 260-280K would be terribly humiliating.
