I think people are missing the bigger picture. Cornonation pretty much wrapped up most of the show's charcter arcs and plotlines. Eclipsq and Globgor are proven to not be be evil just misunderstood. The MHC finally got put in its place and one of them is arrested. Mewni people and monsters are united by Globgor and Eclipsa. Moon is happy no longer being queen and Star is done with Eclipsa deciding to be a normal teen from now on.
Coupled with the last couple episodes where Kellco is done, Marco decided not live on Mewni, the Blood Moon being settled and Ludo given back his castle almost every major subplot has been wrapped up too.
The only dangling threads left to settle is that picture from Booth Buddies, so Starco, and Mina's shenanigans.