Almost certainly, there have been cameras at most if not all gigs. In general, there'd be no confirmation of that for quite a while, but keep an eye peeled in the run up to Christmas.
It appears that it's been delayed till the end of the month. Can't wait, I went to see her live here in London and she was just FANTASTIC (only, I can't see well, and after listening to her LIVE (whatever Sir Elton says, it was all live) and now I will actually SEE her...