Running around on a very quiet server with most in dungeons then I am able to gather a lot of herbs and test alchemy.
Some feedback…
i) even on an empty server there are not enough herb spawns - but being a solo gatherer without bots on the ptr I can get a lot of herbs over time. With mega servers this will be a nightmare.
ii) there was a lot of feedback in classic tbc about the number of crafts you needed to do in order to make discoveries. People reported doing over 2000 and only getting 1 discovery. This need to do surplus crafting for discoveries makes the demand for herbs much greater. While I could I thought I’d test discoveries - so far from a few hundred crafts none. Will attempt to report back after a few thousand if I have time.
iii) I can totally predict this being a drama after launch. I’m not sure if the extra terocone spawns have been implemented but it doesn’t seem that noticeable. My guess is the population per layer on the megaservers is close to six times the population on previous servers - thus if we are staying with the same server design you need six times the number of herb spawns or six times the respawn rate.