Unless they make up a new level of evil there's not really any titles you could spend the game fetching either (really I think you literally can't create anything higher than Devourlord anymore; the only thing 'higher' would be an entity literally capable of having powers that extend outside the game world, a literal impossibility).
It has no name.
It has no title.
It just kills you.
Disgaea D2, coming in 2013!
Kidding aside, I loved Soul Nomad because it was a 'shorter' Disgaea. I just don't have the time for a real Disgaea game =|
So that's likely to be another pass like every other Disgaea game.