Are titan quests repeatable?

Well, I only have one titan quest on my warrior left before the titan source. I was told these quests are repeatable, but now I'm hearing they are not. If so, I'm very dissapointed to know I will never be able to try farming the areas I already beat...

So are they repeatable?

Nope.

No.

But if you have buddies with the quests you can always volunteer to help them out :P As long as one person in the group has the quest active, you can do it, you just won't get any additional reward. So you could try 2-man farming those areas