Were Sollux and Aradia at all affected by the retcon? And when do you think they might show up again in the current post-retcon timeline? It's been a while since we last saw them, seeing as they hadn't had any screen time in three years in the comic.

They were affected by it, and they might show up again, probably sooner than we think.  But they’ve had screen time fairly recently in the comic, they were there when John got his retcon powers.