FUCK YEAH! Was seriously hoping for this! Can't believe they haven't been there already, just glad they are now. Gonna be amazing seeing them outdoors in the desert; a lot of their songs are about the beauty/power of the desert.
Also Trent Reznor's new project How To Destroy Angels will be there, another hope I had! Of course there is always a hope for Tool every year, but know it's not that likely until around the time they release the new album whenever that will be, so try to never get too hung up on it.