Will see maybe in the future those threads would tie up, considering they are not related to anything what is happening right now, and something new would be added based on the current stuff, considering how insequential threads like BLogan are, it always cann be added in the future
And that's exactly the problem: They hav nothing to do with current timeline, there's no reason to work on them, and Like I said it's probably for the best to avoid scope creep.
Even If Hyao miraculously finishes current timeline, goes back to add some random token scenes as fanservice, it will never be the same.
Imaging if you become the BLogan's master, slut him off is how you would progress the story;
or Lizard bad end made you archrival of Rhot, involving lots of non-con shenanigans, and you go after the mastermind;
How about your bonding session with Groth turns to something more;
Could the ever elusive Nameless be more involved in the game;
or the "Farther" in the mine that we don't really know anything about;
How about all "Potential Love interests" that don't come along, so that so they really just feel like "Villager for Sex" rather than significant other?
Keep in mind this actually happens a lot for any game development - discarding ideas / cut contents that don't fit into the game anymore, (The woe of following WIP games)
and I was just ruminating on things we could've had but never meant to be.