Quote Originally Posted by Lycinder View Post
"As for Collective Unconscious and Celestial Opposition, instead of adjusting the stats similar to other healer actions, we’ll make astrologian-like adjustments where they switch between stances"

This statement from the official translation has no connection between Diurnal and Nocturnal, people heard stance changing and got their hopes up, what they are saying is that Collective unconsciousness and Celestial Opposition are going to be toggles like cleric stance instead of just changing their stats to compete with the other healers.
I wouldn't expect anything ground breaking like two more stances on top of the three they already have access to. Just because they didn't say Dirunal and nocturnal explicitly doesn't imply that they're adding NEW stances; instead, they said switching between stances. Diurnal and Nocturnal ARE the Astrologian stances.