Evolving character profiles from one game to the next
I would really like to develop characters that can continually be used (outside of campaign), and continue to level and collect gear, through different instances of game master mode, in a similar fashion to how you keep your character in DnD.
It would also be great to use these characters for PvP.
This would add a ton of replay ability as people would have more emotional investment in their characters instead of starting fresh every time or choosing pre selected hero's.
This would also allow players to create a sort of "end game" content with game master mode, allowing for harder situations.