This might only be funny in my head, but the second season of Ahsoka should start with Thrawn showing up to a meeting of Imperial warlords all chanting his name except Captain Pelleaon who does a sarcastic clap after they all stop and then having a piss fit about how Thrawn stopped calling him and how he really embarassed him all those times he didn't show up for the Shadow Council and made him look dumb in front of Moff GIdeon.
What I'd love to see from Ahsoka Season 2 is one-half being Ahsoka, Sabine, and ultimately Shin on a journey to whatever power Baylon was after, and either a redemption for Shin or a sacrifice by her, or even better, Sabine, which would allow Ahsoka to take on Shin as an apprentice.
The other half is all THrawn and the Imperials - politics, backstabbing, and him dealing with the Night Sisters. One of the consistent through points of Thrawn's story lines throughout the legends and cannon novels, along with Rebels, is that he does not trust anyone who can use the Force, ally or foe, and will seek out ways to where he can control them if need be - sort of like Batman having all the JL"s weak points plotted out.
In the original Heir to the Empire books, he had a biological counterpoint to the Dark Jedi he was allied with, and he kept Luke and Leia off the board. by hunting one and keeping the other occupied with the Dark Jedi. Will be interesting if that's something they keep up so it's just "the force wins".