DC uploaded and overall schedule some days ago
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. At this point the game is officially ~45% done which means 2 to 3 more years is probably a good guess. That said, those missing 55% are what DC thinks the game needs to be seen as complete, while it is certainly possible to add more content afterwards or in surprise updates in case people actually want it or DC thinks it's a good idea.
DC said a few days ago that Kevin likely won't get "his" content because nobody voted for him and it's indeed either a somewhat full update including sex or no update at all - that's why he isn't included in the new development overview. So you'll likely be disappointed, unless "public opinion" changes, but in that case I'd expect a full update including sex.