I hope there's more ways to farm Mythology in 2.1 rather than Crystal Tower, as the idea of worrying about 23 other people just frightens me, haha.

Primals should drop more mythology, maybe even a little bit of philosophy, and they should have some extra gear thrown into the mix. Jewelry, some armor, etc. Hopefully EXTREME mode primals have different loot tables. Pretty sure no one is looking forward to farming titan garuda and ifrit again for the same weapons they just farmed for(but slightly stronger).