Never see this discussed anywhere, but there was a clear implication that Feferi, Aradia and Nepeta had unseen interactions in the dreambubbles after Aradia godtiered.

A dead Feferi contacts Jade in https://homestuck.com/004891 and at a later point Jade starts collaborating with dead trolls for her "Dream Intelligence". I think it was initially the plan for Feferi to be the one connecting the two sessions together with the blue team serving as the post scratch session fairy god trolls and as the troll shadow leader.
Homestuck already sort of does this but since Act 6 so royally shat itself post entry it never really came to fruition.