HI mates!
I takes this idea from sigmastorm, i think that would be nice if from some level there will be some sort of reincarnation throught you can change class (Berserker/Warrior, paladin, mage, cleric, ranger).
When you change class you can acquire new skills and power, i think that can be introduced also some class equipment.
My idea is that through the various maps you get to a map where you start an epic quest for reincarnation at the end of which you can choose the class you like the most.
This would lead to a nice customization of the characters in my opinion.
Tell me what you think
Silitas