Ok, it's not confirmed yet, but like I've said before, I think that there will be an episode 9.

Two reasons people already know about.

1. After you purchase the adventure pass, it says Thank you for buying season 1.

2. The question mark at the end of episode 8's title.

But my third reason...

3. Telltale seems to reply with a wink whenever somebody mentions the possibility of an episode 9

I noticed this on the waiting thread, and a few tweets.

Hm...