Well it is too soon since the game has only Ak for Mythology Tomes gathering.
I'll wait to determine once Patch 2.1 when the 2 new Hard Mode Dungeon and Crystal Tower is released.
These may be new methods of getting Mythology. Crystal Tower may actually treat Mythology like the Philosophy tomes.
The 2 new Dungeons may even provide Mythology as well but a little more for completion since they maybe 8 member dungeons
(it is assumption but I believe Hard Dungeons are 8 member dungeons in SE definition.)
