The latest news is that the tour has been postponed to 2012. Having acted in a few films, Ranbir has some foot-tapping numbers but he wants more. He wants to wait for A.R. Rahman's song in Rockstar for the concerts. So, the tour has to be postponed by a year.
Sadly, the music of Rockstar is expected to be released only after the IPL tournaments. Now, the world tour has been postponed to April 2012, as Ranbir wants his films Rockstar and Barfi to release first.