The Q'onzu Query

These series of quests start with [npc=209318] for me, being at chapter 4/7 Guardians of the Dream.

• The Q'onzu Query

Then [npc=210646] starts:

• Q'onzu's Qualification

After that short quest, [npc=210524] gives:

• Q'onzu's Perception

• Q'onzu's Distraction

• The Answers You've Earned

The reward for druids only is [item=210645].
The series don't end with [npc=211821]. Go back to [npc=209318] at the Central Encampment and he will have a new quest:

• Sky Mother's Ire

Then [npc=210587] and [npc=210585] start respectively:

• [Aviana] Aviana's Assessment

• [Q'onzu] Q'onzu's Quandary

While collecting Bloodied Armor Scraps, mobs will drop [item=208775]:

• Ashphodel Research Notes

Seems like Ashphodel Research Notes is a requirement for [npc=210587] and [npc=210585] to start:

• [Aviana] Uproot the Cause

• [Q'onzu] Appalling Pollen

After that, you will find [npc=210587] alone with a last quest:

• Overseer Oversight

Complete all these quests in order to fix the phasing issue that prevents looting [item=210727].

Cenarius doesn't have a quest for me. I have yet to finish the main questline in the emerald dream, I assume that could be the issue. In case anyone else encounter the same. I'll do the rest of the questline tomorrow and report back on the issue.

EDIT: I was able to pick up the quest after finishing the Ice and Fire part of the "Defenders of the dream" achievement/questline. That's half of the Emerald Dream questline done before being able to pick this quest up :)

A lot of people have different experiences about when one can pick up this quest. It's possible that it may be gated behind renown instead of, or in addition to, some quest progression.