Perry Farrell posted this on Twitter last night, when asked about Robert/The Cure playing Lollapalooza Chicago this year: "No- I am going to call him about coming to Chile rt @nazor2:Perry, any chance we'll see Robert Smith at Lolla this year? I'm crying to know."
That would have to be for 2013, as the 2012 festival is this weekend. Interesting, but obviously not even close to being confirmed. (Thanks Consequence of Sound)