December 21st: Icstor delays December release to January because releasing an update in December would mean it would be small and without any animations.
January 30th: Icstor says he's been sick but despite that, progress is going well and if things continue to do so, he'll release the update in February.
We haven't heard from him since. However,
a discord mod said he has 4 scenes left to work on but lost his passion and will probably stop working on Milfy City and start a new game. No confirmation on that yet, but given that the mod apparently has info on how many scenes are left (must have spoke to Icstor) and taking the general situation into account, I think the info is more than simple speculation.