Depends when she releases it really, doesn't it?
If she releases it in the 1st quarter I would say 300-350k, 2nd and 3rd quarter maybe 350-400k and then if it's in the 4th quarter I would say 450-500k possibly.
if she releases this year she'll sell around 500k (with a good single and decent promotion, of course), but if she releases in the beginning of next year she'll sell 250-280k