I say $250 million if we eventually get all the dates reported.
Unless, of course, she extends the tour - no doubt her label and the affiliated companies will be pulling for her to do so, seeing as how it will likely outgross the Monster Ball with far fewer dates.
There are 54 dates left to be reported, so it'll even out to be about $1.89 million per show to at least match the Monster Ball Tour. 14 of those shows are before it hits North America, so we'll be seeing those big stadium numbers to pull up any of the slacking dates.