So I've been looking around in the files, and it looks like there's quite a few things there were either not finished or cut. Notably a 2nd playthrough/newgame+ that would have stronger enemies that drop unique equipment. I wonder if they plan on updating, or releasing it as dlc or something.
Highly unlikely, dev tends to always do one and done except for doing bug fixes
Always expected to get AT LEAST some other scenes since 2nd game, mostly because he was always showing the girls from the 1st game getting attacked by enemies right into the 2nd game, but that might have been just "extras" on his Ci-en posts
He did nice stuff in this game however it was barely 2-3 scenes, the fact that the scenes could trigger depending if the character had fear (stray dog) or was stuck with the vibrator in the bar was an interesting concept....Which he no longer did with other scenes
Hopefully he does a content update or Paid DLC cause it could be worth it