Is this even still in progress since I don't think it is
technically yes, but it's obvious the guy is just purposely being extremely slow with updates so that he can milk subscription fees on Patreon, seeing he's well aware that the next update is the one most consumers of his VN have been waiting for for three years. He publishes an update roughly once a month, always containing a disclaimer about how something "huge" happened in his life - he caught Covid, he moved homes, his computer crashed, his migraine medication ran out, the Screenwriter's Guild went on strike, he's gotten writer's block, his cat ate his homework... So yeah, I highly doubt any update will be out in December. Gotta' at least wait until January for a new round of subscription fees.