Zones only go up to RoF T2 so, you'd be limited. This is with the most up to date EQ client that works with emu. There're mobs populated up to T2 but, only with generic stats, I.e 8k hp. No quests, factions, instances, basically just zones with mobs populated in them. Items are another big thing, they only go up to VoA, everything after that is "custom" made. So, you can either create new items with the stats of your liking, or look at raidloot.com and get stats from live items. I had a server, not too long ago, with all of VoA populated. I had all RoF group items made from hand (live stats), and was almost finished with NToV and RoF t1 raid items before I was burnt out in making them all.
So with enough people interested in the EQemu community, the possibilities are endless..