stormlord,
every time I read your post - it feels like listening to a preacher
[You must be logged in to view images. Log in or Register.] (I am non religious, but I mean it in a good way)
I think what you looking for:
-a brand new game first of all (full of secrets and exploration opportunities no one solved yet)
-game with strong group orientation and player interdependency
-game that is build in such system that it continuously pushes people forward and prevents 1 spot camping (LDON is sort of good example - mobs do not respawn in the dungeon - or at least respawn very slowly - so you are forced to keep moving forward to get more mobs, and as you move from room to room, time from time you will keep run into those "oh shit!" moments)
-game with well balanced class structure, that one hand still maintains holy trinity at its base but is not locked on ultra specific classes for max possible performance like EQ1 is (so if there is multiple healer classes - they all can heal equally well, if there are multiple tank classes, they all can tank equally well etc)