3 million is far, far too low and she'll be labelled a flop worldwide.
I'll be happy with 5 million or better, but I'm hoping for it to outsell BTW. It's not actually as impossible as you may think.
On the topic of declining album sales; the streaming industry can't hold up forever with the debt it incurs and the fact that some labels hate it, and the digital industry may see a shift in allowing people to buy individual tracks. Does anyone else think it might be possible for album sales to recover in the future? This isn't the first time they've been low.