THAC0, over the next few Books, the devs have said that they're revamping ALL of the lower level content. I've recently rolled a noob Elf and while the starting area uses the same map, the quests, etc are mostly different. The same is true for the other races as well. Lowest level (up to 14 or so and all of Ered Luin) was updated in Book 7. Book 8 revamps up to level 22 and then I understand Book 9 will revamp more as well. It's pretty exciting, actually. :)