Just published the final planned update with a few more improvements.
I'm going to keep the design in my back pocket for a retheme and a more fleshed out game, but I don't have time to develop it further right now. I'm currently trying to get out a mobile game based on my GMTK jam entry from last year (Slimebound), but once I'm done with that, I have high hopes for exploring Wisps more in-depth.