Want to see WIP for next episode or not? (Patreon)

Also, I'm just curious. I see a lot of comic artist post their teaser or wips online to tease their reader a little bit. I have sketches as well, but I don't know if I should post them or not. Because wouldn't it be a spoiler already? What do you think? Yes or no to WIP sketches before I post the actual episode?