Given that H&H won't be touring anywhere until next year, this seems unlikely.
Personally, I wouldn't expect to see Priest in the US this year either since I suspect they'll start their proper Nostradamus tour in the Autumn in Europe and do the US early next year. But who knows.
29/5 Dylan Moran
3-6/6 Sweden Rock Festival
19-21/6 Graspop Metal Meeting