My guess is that the set list posted on BritneySpears.com is just a shortened version of the actual real deal (to maintain the surprise effect). Because yeah, Britney will perform a circusy remix of Stronger, which will then lead to Radar, and Gimme More, among others. Remember that 'rumored' set list which appeared in different magazines? Well look at it closely and you'll notice it's pretty much the same, except that it includes more songs.
A fan who was also lucky enough to attend the final dress rehearsals late tonight sent in updates via his Twitter profile:
-Radar over... Britney came to center ring n said thanks for coming and she hopes we enjoy ourselves since were the first to see!
-Kick ass dancing! Brit looks 17 again..
-Strobe lights n lots of bumping
-Shorten version...turned into RADAR!!!
-New costume nudeish black bead chest
-Ahh Brit came from under stage in a different ring n said " hush just stop" it is stronger!!!!!
-Omg it sounds like stronger but deeper and circusy!!
-Fake thunderstorm n Britney goes under stage in center ring
-Britney finish says "welcome to greatest show on earth take seat sit back and enjoy the ride. The fun is just begining"
-Not much dancing in pom... Fake paps n lots of flashy lights
-Britney pretends to faint clown picks her up n fans her...ahhh piece of meeeee
-Circus done n finish wit fireworks
-Ripped off jacket... Diamond bustier mad sexy
-Awesome mix of circus! Britney has a tiger head as a helmet thing n just took it off
-Omgomgomg Britney fuckin spears is entering from the celing, center ring in a huge round platform!!!!
-Holy shat! The whole stage is lit up in red gold blue and orangy lights and people r hanging from the ceiling!
-O.M.G. Perez video is on n he's laughing like a fat mess!...stage=gorgeous
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