Technical Questions about the bonus quests feature

[Snappet]

Hello there community!
I have some questions regarding the bonus quest feature here on Warmane:

Is there a bonus quest for every area?
Can you restore them once abandoned?
Do you only get them to a certain level / are they level capped for getting them?
Does it matter when you finish them or do the rewards scale with your level anyway?

Thank you and best regards!

[Persivaln]

Nope, there is no such thing.

[Shred]

I think that there is something like that in Frostmourne although I have no idea of how it works. At least based on this other thread: http://forum.warmane.com/showthread.php?t=447575