Here is my idea. Some new special challenge slots (much like the pvp and IDDC exclusive slots that players can use):
A hellish slot
(for players who dont want to suicide a king to try out hellish)
A fruitbat slot
(for players who dont want to lose a slot but still want to try fruit bat)
A no-trade slot
(for players who see party houses as cheesy. Partying still works but no objects or money can be used from other players, no matter how high level you become)
These slots could become unlocked after defeating Morgoth, since newbies probably wouldn't want to try them and they would have enough spare slots to try it anyway if they want to.
I understand that there are a lot of ideas floating about, so I won't be crushed if someone else's idea goes in instead. On the other hand, there is already code to do special slots
Lightman