Hello,
Even though Angry Toad Studios is no more, I found that I am able to work with Steam as an individual so the game will be back on sale soon :)
It's still not likely that I can add any more updates in the future, but I am intending to release the 2.0.0 update that is on the Beta branch as it includes a lot of nice technical improvements as well as a little bit of new content.
Cheers!