Does this game have content the original doesn't have, or is it purely a remaster?
One thing I think should maybe change is the ability to renovate the basement in the safehouse. If you just don't go get Cassie back, she doesn't really own the ruins and she probably has no hope of escaping captivity on her own, so ownership of it should probably transfer to the player at the point she is kidnapped by the Don's goons. I'm not like one of those people who tries to stuff my ideas down a creator's throat and tell them how their own work should be, but that is a little hole I noticed.
It has vast amounts of new content, and a little bit of content was changed from the original (Slavers in the original took you to a slave auction, Slavers in Plus take you to the milk farm. Also indivi you should totally do something with the slave auction idea, it was admittedly one of my favourite parts of the original)