Here comes the Mongo arc to this story.
Sheila reunites with her sister Aura and her husband Barin during a crisis mission.
Zyna reveals herself after being presumed dead for years and reveals Castra and Krotan have a long lost sister Katarina, who is the baby of the trio; Castra's younger sister and Krotan's twin sister.
Note: Like with Rachel and Jade (as well as Abby, Sara, Celena, I'm wanting to include Zyna in the special Earth N project: When Worlds and Dangers Collide, unless noted otherwise, they'd just be in the main story. However the characters belong to @james5-doe so
Baylin and Zarkov aid the Defenders and Sailor Guardians with this crisis and it's hinted Joe Wylee once dated Dale before they ended the relationship as Dale ended up with Flash and Joe was killed during a confrontation with Ming.
Krotan sees the error of his ways thanks to his mother, baby sister, and a message from Jedda. Sort of a redemption for Prince Krotan.
The arc ends with a double wedding of Rick and Jedda Gordon and Flash and Sheila Gordon. Hence, Rick is now King of the Netherworld.