Highly doubt it. all these coincidence chances that they might play a song never amount to anything i.e. Spanish Eyes in Barcalona, New York in New York, Mofo in Vegas ect...
Feel free to laugh at me and say "i told you so" as many times as you like if i am wrong
Patti might play it herself, but I think the best you will get from the boys is a snippet (even that's unlikely I think as they already have Rock 'n Roll ****** at the ready...).
I don't think they'll do anything with Dancig Barefoot. I think Patti Smith will come on stage to do People Have The Power with the boys! Or maybe Bono will go on stage to sing it with her during her own set.
well we have an answer... patti played it by herself, and she did join u2 on stage, but not for dancing barefoot... rather for an unreal cover of instant karma.