It may still be possible depending on if it fits his plan, the end of Patreon funding for a game isn't necessarily the end of its development. Look at Nano-Control, his other game. It is nearing the Patreon end, but it is not ending development. He decided to work on some of the highly talked about, Patreon banned content after it goes through a certain point in funding. According to the plan so far, he plans to drop Nano-Control from Patreon with one 'final' update before he begins including content for, as an example, Sarah. This way, Patreon can't do anything because it isn't on their platform even though he is. The same could be done here near the end of development for the final arc.