Work Bitch
Womanizer
3
Perfume
Oops I Did It Again
Baby One More Time
Me Against The Music
Slave
Toxic
Hot As Ice
Circus
Get Naked
Freakshow
Lucky
Gimme More
If U Seek Amy
Do Somethin'
You Drive Me Crazy
Scream & Shout
Piece of Me
Til The World Ends
Boys
I Wanna Go
Stronger
Passanger
I'm missing Overprotected and Gimme More (Born To Make You Happy and Sometimes would have been lovely too, but that ain't going to happen ever), otherwise it's looking like a nice set list.
I'd say a few of the album tracks (ie, Hot As Ice, Freakshow) will be switched out for different songs every so often. And Passenger being on the list makes it a good bet for the 3rd single.
Overprotected, Everytime and Gimme More seem like the biggest snubs in this setlist hitwise. The video montage when they discussed the setlist also showed a bit of Sometimes, so I'm still hoping for that one.