Did it end with a cliffhanger?
What the title says :)
shareYes.
shareto tell the truth not so much
shareYes, of course, the whole group in Terminal City and under siege isn't a cliffhanger. And all those lose ends that never got tied up (like for example, Max and Logan and that virus).
Some of the scripts for season 3 were done already, they were later used for two additional books to conclude the story.