Sorry for not replying sooner. I didn't see your question.
I believe the DK starting zone is mostly working. I can't remember if the ship cannons part is working or not, I'm just going to say it doesn't, so I don't get your hopes up. It's been a long while since I've played it, if even on v6.
Same situation for the worgen area, it's been a while, but I've heard a lot of bug fixes towards it.
When I did play it, I had to use a few commands to advance through. Once you get out of the initial city/starting area it gets better. I mainly only remember the carriages not working, which isn't really a problem.