It all depends on the amount of promo that's done. If the album is of good quality, with excellent promo, well-timed single releases and music videos and everything goes smoothly, and if the general public are feeling it and she's winning them back on her side, then it should have no problem becoming a big hit.
The biggest of her career? I don't know...that's subjective to opinion. I can't really say cause I honestly don't know.
However, I will say that I know it won't flop. I think it'll do excellent.
