Theory .. who is the supervisor?

Assuming Supervisor is not droid/AI, Supervisor happens to be captain Rennod.That money is worth-less if exposed to public, old captain Renold knew that and he decided to enjoy it on At-Attin.

We get a lightsaber fight between him and Jod.

Jod either dies, or kills Supervisor takes on his mantle.

Kids and their families are let to choose between staying and keep the secret, or going out to new adventures and forgetting about the planet => we get a season 2.

... and no last moment cameo characters 🤞🏻