Its never going to happen unless his Patrons stop giving him free money.
He's getting ~600$ a month for nothing.
Now hear me out if you're already offended: I don't blame ILL for leeching off it, I would do the same if I had the opportunity. But if his only motivation for creating this game was to get money, then why would he still work on it if he can get just as much money through sheer faith and sympathy? He'd probably make less money by actually working on it, since ,once the game has been released, his steady stream of income would suddenly stop.
It seems to me like most porn-game developers have next to zero passion going into their projects. Obviously money is always the number one priority when making games, but indie-programmers seem to at least have some passion for their project, which drives them to complete their games the way they envisioned it to be. Also putting out a good game can further their career-prospects in the long run.
When you make porn games it just doesn't work the same way, thats why you see so many developers getting burnt out. There isn't much glory in making sleazy porn-games, it seems to me like a last resort for a lot of frustated indie-developers. I may sound very judgemental saying this, but believe me I'm not, I'm the consumer after all. I'm simply talking about the mainstream appeal of porn-games, which ultimately has its limits.
Thats why you see so many porn-developers abusing Patreon so much: What is there to lose? A lot of them don't bet on making a career in the porn-game business. Its simply a means to hold themselves afloat until they find a better career-path, and when everyone keeps paying nonetheless, why work more than you need to?
TL;DR: Another Patreon rant. But THIS is the important bit: Development will never substantially continue until his Patrons re-apply some pressure. There's simply no incentive when the money stays comfortable by doing nothing.
Again this is nothing personal against ILL, its human nature to take the path of least resistance and I'd probably do the same in his situation. But there are better, fairer ways of doing this. Changing the payment system from "per month" to "per update" would be a good start. But this will never happen until the Patrons halt their cash-flow.
If you're currently contributing to his Patreon then halt your payment to force a response out of him. Then you can re-negotiate to a "per update" system, otherwise you will never see a substantial update to this game. I'm not saying this because I think that "he doesn't deserve" that money, I'm saying this because you're getting ripped off. Ultimately its your money, but I and a lot of other people want to see this project continue at some point.
Fapping is serious business