I stopped playing shortly before WoC and there's a couple things I'd like to check before I start the story line quests.
1. I saw that some quests have hard mode specific versions. Am I able to do them on normal mode first and then hard mode a second time on the same character?
2. Once I finish the last quest, do the zones go back to normal? If so, is there a way to reactivate the special mobs and such like with taking a bounty quest does for the WiK zones?
3. Is there anything special I could potentially miss forever? Like certain storyline quests, unique items, prime farming spots, etc.
4. About how long is the entire thing in terms of time spent playing?
5. How would you rate the difficulty of it when done in HM?