I saw Helker last weekend at Metal para Todos in Buenos Aires (amazing show!), and was able to talk to Diego Valdez about next year's Progpower USA. He told me that his idea was to make an all English set, so I told him that one or two songs should be included (I mentioned this thread).
He said he'll have to talk to the promoter about this (are you reading this Glenn?).
I'll see him again next month as he is also the singer of Electo Nomicon and they are presenting their new CD. (a great band everyone should check
https://www.youtube.com/watch?v=uSP0xj7ygwY ). If you want Diego to sing in spanish say it here and I will let him know.