I think they will include
Warriors: Because they seem to be with every race
Warlock: It is on about 'using dark powers' to bring them back to power
Mage: A warlock is a mage that has gone to deep in the knowledge of dark powers
Rogue: They seem the speedy type
Thats about it. This is [u][b]only[/u][/b] my prediction I am not entirely sure.