The title is clever and tongue in cheek actually!! Basically its the sequel to The Dutchess. People will easily attach and refresh their memories of the new album and her first solo one
Well, Gwen's fighting just to get a T40 hit, probably because she's over 40, so that's an uphill battle.
If I'm not mistaken, LA Love was a T40 hit. It did okay, and it refused to die on itunes for a while. It wasn't in the top 10, but it stayed in the top 50 for a while. It was also a top 5 hit in the UK.
I wonder if they're going to sell a bundle version that includes The Dutchess. That would be a way to grab people's attention if they advertised it including the new single and album, plus her hits.