Leviathan

Yes, I believe It's possible.

Yes, that's right. We will wait for the fix. good luck.

Yes, that's true. Also after maelstrom you should be able to use the [Wyvern NPC ID = 45005] and go to the Deepholm (In this part you will mount Wyvern...

Yes sure. https://www.youtube.com/watch?v=xhkljfy0h3s (As you can see in the video Thrall should some emotions too)

And about spawn of the maelstrom portal I recommend you watching this video: https://www.youtube.com/watch?v=j6lCvTSdOe0

I guess this can be done with SAI

I have no idea. All I know is it's not scripted right now :)

PS: This is maybe some kind of hack fix. I'm not sure how this thing should work exactly.

Sure! Here: https://www.youtube.com/watch?v=s8I5ehgh_JY (just watch start of the video) This will show how to enter the arena (There is no pre-quest) You can use spell=108919 to enter the arena And...

It is running in the background but this won't keep running after a restart. Because even if you add it to startup items to solve the problem mentioned above, this...