I'm really hoping that he decided to add more content after the night out with Blake, otherwise this huge delay doesn't make much sense to me anymore. Even if the Blake event has 3 different routes, it still is 1 event and shouldn't take him this many months considering the amount of content in previous updates. Maybe he's adding parts of the following day with Tommy's roleplay/costume event or whatever it's called. He did talk about this event on Patreon like 2 months ago, saying that he's still unsure on the dress Jessica would be wearing, and some other stuff I can't remember right now.
Anyway, what I'm trying to say is that he must have spend some time on this event in some way or another. Whether he was only planning for it, or already started creating some scenes for this event, I can't say. Fact is, stoper said he's not really planning ahead, which makes me think that he might spend some time creating scenes for following events every now and then. Maybe he was getting bored with the Blake event or whatever and decided to work on other stuff inbetween. I'm just speculating here, actually no clue what the hell is going on.
I know there's always delays with stoper, but this is getting ridiculous, even for him. Hopefully we'll get some news soon.
Edit: By the way, do we know what the development blog from the 10th is about? Is there any useful information?