a point of confusion with regards to the retcon and how it works in paradox space. i know the post-retcon asteroid kids still went through the dream bubbles, but did stuff like karkat and meenah meeting even happen from post-retcon karkat's perspective? also, how would aradia (and to a similar degree, sollux) work? are there a pre-retcon and post-retcon aradia floating around in paradox space now?? i am so confused

Karkat and the others still met Meenah and her team in the post-retcon timeline. Whether there are two pairs of Aradias  and Solluxes has yet to be seen.