With the new patch came the new game board for the Witchwood expansion. After messing around for a bit I found some cool interactions. I will start with the top left side and move on clockwise.
Clicking the pinecone on the hollow tree a couple of times will cause an axe to hit the tree and awaken it. Clicking the shrooms will release a pink cloud. Clicking the tree will drop some leaves and woodchips. You can break the chopped-down log by clicking on it.
Clicking the leftmost grave will break it and release a ghost. Clicking the middle grave will cause a lightning bolt to strike it and will start a rain. Clicking the grave to the right does nothing. You can turn the light in the house on and off by clicking the windows. You can break the little wood piece that covers the small window above the window in the middle to release some bats.
You can click the wheel of the cart, they don't seem to fall or break though. You can close the cart's window, it will re-open after a few moments. Clicking the cart's chimney thing a couple of times will release some fire. You can click the lantern in the wooden box, it doesn't seem to do anything.
Clicking the blue flowers in the pot will release a purple cloud. You can open the glass flask by clicking its wooden cap. After opened, the flask will shake when being clicked. You can make the cauldron shake by clicking its sides. You can make the ladle shake in its place by clicking on it. Clicking and holding will cause the ladle to mix the liquid inside the cauldron. You can add the ingredients to the liquid by clicking on them and dragging them to the cauldron. I'm pretty sure that doing the cauldron interactions in a certain order or way will do something special (like the volcano from the Un'Goro map or the chest from the Kobolds one) but I haven't found the way to do it yet.
Those are the interactions I found, did you find something else?
Edit: Btw, it was just an idea, I did not even played on that board yet.
The same idea came to my mind as well, it seems logical until you see the ingredients in the map. Someone will probably find a way to activate the hidden thing in a couple of days, we just have to either keep trying or wait.
I don't think that putting anything into the small pot counts as "progress". You can destroy all items on the board as well. I'd rather know if you can pick up the worm first somehow (I can choose between claw and wings).
anyways, the best way to try so far is to go to Practice Mode and just restart and restart until you get WW board (you have also unlimited turns there)