Here are my guesses:
1. Need drops from Bis EX and Ravana EX
2. Another Book system where we need to complete FATES, Dungeons, maybe even hunt mobs now with the Skyship exploration content. Oh no....
3. Dravanian ATMA Dragon soul Crystals or something like that.
4. Head start will be that completed Zetas will be the BASE weapon for us and the rest will have to do like in the original quest and go find it in the beast tribe stong hold and kill the mobs and all that.
Good luck to us all with this and hope they don't jack us big time on this and give us something that makes us not even want to do it.