Add re-entry barrier to all quests
Go to every quest from level 2 to 20 and add an impassible blue forcefield over the entry, which activates when a player character leaves the first room. Once active, anyone who recalls, joins late, or uses Dimension Door will be unable to come into the rest of the area.
This change will allow all quests and modes to be as fun and popular as Epic mode is. No longer will players be forced to wait until level 20 to experience the challenging tension of being locked into the dungeon.