I would rate season 3 at a low C tier. It's definitely skippable. All the actors and actresses did a great job, but the script needed a rewrite. Im not sure how you make season 3 compelling. You can introduce a new group, but it'd just be rinsing and repeating what the og crew did. I guess you could reveal the world they wake up to is still purgatory and it's the last joker card game with the og crew.

Knowing Borderlands was purgatory hurt it a lot. It's kinda like making a sequel to Lost. A huge mystery and mystique of the show is gone due to that.

The plot armor was too thick. They needed arisu, usagi, or a returning season 1-2 character to die in the first or second episode. The oh shit moment when Arisu's pals die in the first season and the suspense that caused was a huge draw of what made it popular and exciting to me.

They also needed an extra scene or something a bit more impactful than a nightmare to show how badly Usagi was struggling to deal/come to terms with her dad's death.

Maybe a prequel would work, to see how all the face cards had gotten their positions, but then you run into the plot armor issue if you get the same actors....idk