Here’s my speculation on what shows/movies The Mandalorian could be setting up.
-Boba Fett
-Rebels live action (Ashoka-Rex-Ezra-Thrawn)
-The MANDALORIAN JEDI War / KOTOR
-Luke’s Jedi academy
The Mandalorian, while following its own story, will have episodes that affectively work as backdoor pilots for these shows / movies.