But overall, the finale was okay. Not bad, but not great. The big problem is that it was so anti-climatic. We all knew Thrawn was getting back. D'uh. Disney has already publicly talked about additional seasons and the Heir to the Empire movie.
The most interesting stuff is all yet to happen. Thrawn getting back to the normal galaxy should have happened earlier in the season, so we can get at least some fresh/unpredictable content.
Regardless, looking forward to the next part of the Thrawn-verse story.