The news is on their official site and the concerts will start somewhere in September 2011.
Other than that announcement nothing else is known. I’m really surprised to hear that they’ve announced another concert before the 1st one even began! Hearing about another concert I’m also excited because the Fall concert could be used to promote the album, so if there are any new songs we’ll be able to hear it performed live, which I find more better than the studio version.
Pre-sale tickets for the concert is currently available and the concert is planned for 9/2011.