An uncharacteristically early announcement, as they usually do this on New Year's Day, but the dates have been confirmed. July 27 through 29. The Stone Roses will be playing.
If I had to venture a guess, I'd say the reason they're announcing this so soon may be because the Roses' England shows sold out so insanely fast, but who knows. I'm certainly not complaining about the early announcement, or the one band that's been confirmed.