He did say he doesn't really like how Manston turned out to be, even after the rework/revamp (part of the reasons on why he developed DLC). Not sure if he's willing to put extra hours to remake a game he already doesn't enjoy.
The revamp happened after he already was a bit into development of
DLC. One of the big things he realized was he set this VN up for way too many branches and variations. It became unmanageable, and the rework was an attempt to trim that down a bit. Maybe any dissatisfaction might have come from some of that adjustment (having cut too much or not having cut enough). It's hard to say, unless he's said exactly what he's unhappy about with this VN. He has specifically said over and over that he's going to return to this after finishing the other, so saying it's "a game he already doesn't enjoy" might be overstating things a bit. Not sure about a remake of the remake or whatever, but he has maintained his commitment to returning to this.
