This update isn't complete, it's basically a test version. Some of the things still need to be added, Melanie/Tiff and Jane don't have new content in this update, I think.
Not related to that, but sort of is, hopefully after the public release is complete the game starts to progress. I don't think the new gameplay stuff is needed, hopefully he sticks to it and doesn't rework everything again though.
I don't think the story pacing is bad at all honestly, we've already almost had sex with Tiffany and fingered one of the twins, I think that is pretty quick actually considering it's a corruption based game. It just feels a lot slower since it's getting redone all the time.