quick question, wasnt the whole point of the last update a "remake" in order to make updates easier to produce and faster to release?
No, it was not. One of the main points was to create a sandbox experience (or at least, the illusion of one). Another was to fix some of the storyline elements which has bothered Uberpie since near the beginning.
Also as has been stated (and you made a good assumption with back in December) that with two separate games - this update was going to take a long time. Though, Uberpie had stated at least twice after long update cycles that "mega" updates would no longer be a focus -- both times failing to keep that intended focus.
It is my opinion that had Uberpie stayed with his initial plan of solely focusing on the netorare content this update, rather than attempting to also create harem content yet again - in tandem, and separating both into two games, not just having optional content within one game, that the update could have been released by now. However, as Uberpie has a habit of doing - they overpromise and so, more often than not, the update takes quite a bit longer than first inferred. This was the reason for my late March to end of May conception for when Uberpie would release the update - but it appears they bit off even more than what players might have thought.