Those Market Board prices..

[Malakai]

Most of the materials for things are easy to obtain and still are even after patch. The only things that are hard to obtain that will skyrocket are the demimateria, some big fish, and some garden grown things. But that's about it, you can buy most of the other stuff from NPC beastmen vendors/town vendors. And the stuff not sold by those are easily obtained by a short time of farming. Yea the philo and myth stuff will shoot up in price but ixali quests should have netted a good amount of oaknots since no real 'need' for philo mats unless people were working on books for new tools before patch. Also GC seals aren't too bad to get either doing daily turn ins especially HQ's on the bonus items. So plenty of ways to get materials cheap asides the certain 3 listed since those require your own personal skill or relying on someone else who has the skill/access to obtain it.

[MomomiMomi]

Yea the philo and myth stuff will shoot up in price but ixali quests should have netted a good amount of oaknots since no real 'need' for philo mats unless people were working on books for new tools before patch.

Those items are being removed from the oaknots list. They will only come from seals, desynthesis, and probably dungeon drops.

Expect myth items to go up a lot, as they already have.

EDIT:

Just went thru all the patch notes again. Saw no mention of them taking away philo+myth mats away from Ixali vender. Just them adding 2 new items to the oaknots. Also myth mats have been added to the GC companies.
Ixali: Philo mats 2 for 1 oaknot. Myth mats 1 for 7 oaknot. Ehcatl Sealan + Xelphatol Spring Water (new added) 1 for 8 oaknots.
Grand Company: Philo mats 1 for 2500 seals. Myth mats 1 for 9000 seals.
Other means: Hard mode dungeons + 3 new dungeons. 8 man treasure map and boarskin map (philo mats only no word on myth mats til after patch)

Just went over it myself and didn't see it. Hmm, could have sworn I saw that mentioned in there. Either way, with the Ehcatl Sealant added, I think we'll see most oaknots used for those.

[Malakai]

Those items are being removed from the oaknots list. They will only come from seals, desynthesis, and probably dungeon drops.

Expect myth items to go up a lot, as they already have.

Just went thru all the patch notes again. Saw no mention of them taking away philo+myth mats away from Ixali vender. Just them adding 2 new items to the oaknots. Also myth mats have been added to the GC companies.
Ixali: Philo mats 2 for 1 oaknot. Myth mats 1 for 7 oaknot. Ehcatl Sealan + Xelphatol Spring Water (new added) 1 for 8 oaknots.
Grand Company: Philo mats 1 for 2500 seals. Myth mats 1 for 9000 seals.
Other means: Hard mode dungeons + 3 new dungeons. 8 man treasure map and boarskin map (philo mats only no word on myth mats til after patch)

[Rath]

Just went thru all the patch notes again. Saw no mention of them taking away philo+myth mats away from Ixali vender. Just them adding 2 new items to the oaknots. Also myth mats have been added to the GC companies.
Ixali: Philo mats 2 for 1 oaknot. Myth mats 1 for 7 oaknot. Ehcatl Sealan + Xelphatol Spring Water (new added) 1 for 8 oaknots.
Grand Company: Philo mats 1 for 2500 seals. Myth mats 1 for 9000 seals.
Other means: Hard mode dungeons + 3 new dungeons. 8 man treasure map and boarskin map (philo mats only no word on myth mats til after patch)

Philo are being reduced to 1500 GC seals