No, the remaining 4 episodes will be released early next year, rumor is on Jan 4th specifically.

Eve will be busy with killcanon as we see in the trailer, for the other guardians they could have them be separated from Rex, Rae, and Kate, although, the entire guardians of the globe and Eve did work together when mark was gone to fight omnipotus so there is a chance they depict that but with the lizard league instead.

They’ll probably save the sequid stuff for part 2 since it’s something I think they’d want to devote and episode on, however I do agree with your assessment of the Lizard League’s attack being next episode, there is some weight to your idea, that being the fact that the lizard league vs Guardians of the Globe was in the trailer which was pretty much a trailer for Part 1. I do agree that Shrinking Rae and Dupli-Kate probably die and Part 2 will have Mark dealing with the consequences of his decision to disobey Cecil’s orders.