I finished season 12, the final season, and through my seething disappointment, all I could think was, "why did they bother, when season 11 offered a far more satisfying ending for all the characters?" It felt so complete at that point.
My advice, skip the 4-issue arc of season 12 and go out on the high note of season 11! I loved this comic book series, but I'm creating a mental block for that last season.