It's basically the same. Last year was speculation, this year is speculation. CarCal22 made a good point about rehearsals for the VMAs being days prior to the actual show, and Britney has dates leading to the 13th. My bet is a recorded video of her presenting like 2006.
I'm not getting my hopes up for her even being there this year. Remember last year EVERYBODY thought she was performing and then she didn't and everyone was pissed.
Well Larry Rudolph confirmed that she wasnt going to perform weeks before the show, people just didnt want to believe him..