My prediction, you can treat it with caution and distrust. Based on my personal feelings. The update will be released at the end of August and will be available in September-October.
That would be disappointing considering the last progress report. Unless in the meantime he decided to significantly increase the number of events (animations and renders), it would mean that he significantly slowed down the work on the game. On the other hand, Patreon's support is not dropping, why would he be in a hurry? If there is no announcement on Patreon tomorrow (he usually posts on Sundays), the concern will be justified. But on the other hand, if the support on Patreon remains the same, it is possible for this to drag on regardless of the lack of communication.
I don't expect much from this sequel, it seems to me that we will have "only" the development of already existing scenes or new variations of old events (the trip with Felix and Diana to onesan), I conclude that from the preview scenes. I wish I was wrong and that the sequel would be better than the last one. The last one was great, I was hoping that he would keep the concept and introduce a secondary character in each sequel, while the development of the main characters would happen simultaneously and gradually.
But who knows, maybe he'll surprise us with his speed and quality.