I highly doubt she'll get a number 1 release week, she has some competition from Iron Maiden the week before and other releases that week are Bring Me The Horizon, Stereophonics and Duran Duran. Now I don't really follow album charts normally, but those were picked out as likely to beat her that week on another forum.
I think she'll definitely manage Top 10, and maybe Top 5 but most importantly I just want some longevity.
Edit: Also the album has been pushed back a week in Germany to the 18th of September, presumably because they want her over there to promote it during release week. I am happy about this, its always been her second biggest market outside of the UK, so it makes sense for them to spend some time out there.
I don't see how the album can have longevity in the charts without a hit single.