I can see WHY the dev wants to re-work the old models - some of them really were too extreme in proportions and could've been prettier.. But as it's a FULL game re-make instead of reworking old scenes, the situation does change. If you plan to make such a major re-make then you would need to convince your fans for WHY you're throwing away your old game? At least have more content in the first release, the prologue is literally 20 minutes of content and you won't even get to see the family members who're plastered everywhere on the menus.
Second thing is that, while I presume the remake happened due to the cluttered code in the old version, which could've been the reason, the code could've been reworked, it didn't need a full rework in that sense. The new character models don't look like they're any higher quality in terms of the graphics (the old models were pretty close to the same graphics quality) hence it wouldn't look that strange if you added the current prologue into the older version of the game.
Because the family is the pull-factor in this game, if the first release doesn't have any content with them, then it's just a waste of time, which was the case here. In most cases, the first release should introduce you to the "targets" who you'd be "romancing" and also give you teasers of those characters.. This is how it usually is, hence that part of the rework also failed, as I was rather disappointed that there was no family content and I still have no clue why this remake was "necessary" - the models look to be from the same engine/program, you can rework old scenes if you're unhappy with them and wasting the time you used creating the old game will only make others see it as you milking the idea. Hell, the touching/groping systems should've also been possible to add into the old game code.
Finally, why couldn't you just have completed Twisted World 1 (add 2-3 more large updates, giving the previous MC an harem, the angels/gods understanding how they messed up, and the MC having a huge orgy, "The end", or maybe small scenes where the MC marries each of the characters, etc), and released this as Twisted World 2 or whatever naming you feel is suitable? You could literally use reworked models of the original characters (which seems to be what the dev is planning to do), maybe rework some of the events/ideas (I presume this will happen anyway in the remake), and done. You also could've kept your fans from the original game without damaging the goodwill you might've had with them? I can't see the value in this remake at this point & if I was a supporter this would have been the point where I cancelled my support.
Simply disappointed.