ok i gots plenty o' suggestions.
1)dont put unessissary npc's in the game. In citys there should be plenty of npc's, but everyone should have something to say, even if its not very important.
2) quests, and lots of 'em. And not them crappy quests in live EQ. I mean 'real' adventurouse quests.
3) does EQemu support NPC paths? If it does I would like to see npc's that don't stand there.
4) story? Im not sure if your wanting to go with a story or not, but im thinking a good original story if well thought out would be really cool, though it shouldn't have anything to do with the LiveEQ story because their story sucks

Also the faction system is way to easy to...(looking for that e-word)..mess up, so just make some npc's hostile and others not. (not exactly sure how that works)
5) do all this and slap 'rp prefered' on the title and I will be happy. :o