As Hyjal Burns Quest.

http://www.wowhead.com/quest=25316/as-hyjal-burns
https://www.youtube.com/watch?v=F5F2zv4-0TM&feature=youtu.be
https://www.youtube.com/watch?v=6MCs3y9LTb4&feature=youtu.be
http://www.wowhead.com/npc=39140/aronus
http://www.wowhead.com/search?q=Hyjal#spells
http://www.wowhead.com/spell=76649/aronus-custom-ride
This is all that I found.
Quest not scripted.

Problem one:

1. Teleport with Aronus vehicle - not implemented.
2. At spellclick, should summon Aronus and clicker should ride vehicle on temporary summon.
3. Perhaps a taxi path, it is also possible spell on server-side, not in client dbc - another problem, spell_template for Cata not working. Need full restruct spell_dbc in table.
4. SMSG_MOVE_TO and SMSG_MOVE_TELEPORT - not working correct in Cata. For near teleport.
5. Areatrigger not handled in Cata.
6. Terrain swap not handled in Cata. For those who like to argue - the same situation in Gilneas is not the same as the the zone the death knights.

So many of problems for one time - thanks for the explanation anyway.