My wish list:
Turisas
Eluveitie
Gloryhammer
Dark Moor
Heidevolk
Manowar
Yngwie Malmsteem
Falconer
Visigoth
Arkona
Tyr
And a few that I consider to be less likely to impossible, but would make me shit every turd in my body into my pants if announced:
Dethklok
Tenacious D
Babymetal
Steel Panther