This all sounds interesting, can't wait for it to be openly released.... few questions though.
Will it require a brand new save / starting over?
If not, how would the requirement to unlock classes affect existing characters already using "locked" classes?
Will there be ways to decrease desires, or are they just a punishment for continuing to use and level a character? From the bits of info shared publicly, it seems like a character with maxed out desires might be .... problematic XD