Once he escaped from Doc Scratch’s house he appeared in the Furthest Ring. He saw Skaia and said “It’s the fucking JACKPOT.” and then started flying towards it. His intentions are unknown.  

The Vast Glub was a psychic shock wave released by Feferi’s lusus that killed every troll in the troll’s universe except the Condesce and Feferi. The twelve trolls we know were able to escape it because they had already entered the Medium. The Vast Honk is the sound Lord English released once he had emerged from Doc Scratch’s body. The Vast Croak is the sound that the Genesis Frog will release when he finishes growing in the middle of Skaia.

Both his Quest bed and Sacrificial Slab were destroyed by Bec Noir. 

The Viceroy and their army may still be on Lomax, Jake’s planet.

Kanaya, Terezi, Karkat, and possibly Gamzee are the only ones who aren’t godtiers. So yes, if they do not find some way to ascend they will eventually grow old and die. 

They have no Sacrificial Slabs to die on. Their quest will most likely be retrieving the Genesis Frog from Echidna. 

AR was just Auto Responder’s initials. The artificial intelligence in Dirk’s shades was called Auto Responder before he decided to be called Lil Hal. 

Their lack of Space and Time players is due to the fact that their session was always meant to merge with the Beta kid’s. Jade and Dave are their Space and Time players. 

Roxy has yet to make a complete matriorb but she came close.

The word “wriggler” has actually never been mentioned in-comic except once by Roxy here when referring to human babies. I just used the MSPA search function and it wasn’t used by any trolls at all. Wiggler however has been mentioned many times and is in fact a baby troll.