EverQuest II May Update Outlines Changes to Dungeon Maker
As for EverQuest IIs Dungeon Maker, the team is experimenting with what they call Level Agnostic gameplay, which will allow a player to be effective in the Dungeon Maker regardless of level. Tweaks are still ongoing, but thus far the team has put groups of level 50s with level 90s and some lower, so it sounds like the changes will function much like a mentor system. The changes still have some tweaking ahead of them before they head over to the Test server for players to give a go, but they should be arriving sometime soon.
Source: EverQuest II May Update Plans