I agree that episode 5 is where we get Asoka. Episode 4 is to be directed by Carl Weathers so my guess is that Mando will be taking a detour, (maybe to fix his ship?) and will either run into Greef Karga or Greef will be searching out Mando with some sort of important intel. My speculation is that if this is a dirty western there has to be a posse of interesting secondary characters so anybody that has helped Mando in the past is fair game to come back and get in on the action, this what could happen in episode 4 or possibly episode 6. I could see this season finishing up with multiple allegiances and there has to be another unexpected Star War character thrown into the mix. A tradition I am waiting on too is a flashback episode, all episodic series seem to have one and there is a lot of fanboy chatter that they have to bring back a live action Darth Maul somehow as he has a tight relationship with Asoka and the Mandalorians.