Sabine just proved that people who aren't Force sensitive can still learn to use it, which is pretty neat. This also means we have three competing factions to create a new Jedi Order: Luke's orthodox approach, Ahsoka relaxing entrance requirements, and Baylan going Grey.

Unless Ray Stevenson already filmed stuff for season 2, we've probably seen the last of Baylan, or at least the last of him alive. I expect the Peridea plot line next season will be about tracking Baylan and figuring out what he was doing out there. Shin will probably be alone for most of that, but may join Ahsoka and Sabine near the end of the season.

I also suspect that Leia goes rogue either next season or in season 3 to form the Resistance to fight Thrawn, then keeps going to mop up other Imperial Remnant factions, such as the First Order, leaving her where we see her in the sequels.

I kind of wonder if Ahsoka's second blade was destroyed to make choreography easier. All season, it was great when she had one lightsaber, then a bit iffy when she had both.