Tbh it would be cool if we could change the outfits between classic, underwear, naked and the one that she was going to use in the sequel, but its true that it would be a lot of effort. Making new versions of the already great animations sounds better at the time of choosing what to do, but i would be lying if i dont say that making both would be the best.Nah, that would be an insane amount of work to redo each sprites with this outfit. I also seriously doubt having an option to change the player look is something that can be done.
Tweaking/improving/polishing the current sprites is probably a better way to spend time on this.
In my approach if i could do it and have the ability haha i would make those skins with the cum still on the characters body, include new frames to the animations for a smoother movement and maybe some new game over screens, with all the previous things fixed in the patch and others that i mentioned of course, this with just the objective of making a proper remastered version and not a sequel because on that plan we could go crazy on the content added haha, but on the other hand a remake with all the classic animations but one or two extra animations for every enemy also sounds appealing, its just the love for the original that makes me dont want to get too loosed with it unless is a proper sequel or fan-sequel (also the protagonist couldn't be any better looking to me).