Wow. This is a very ambitious roadmap! (I mentioned Inochi2D because it is an open-source alternative to Live2D, so it's encouraging for me to hear that you are considering it!). I have started to look at Capsule 1.9, and I will give you some feedback soon, if you'd like. You are proceeding at an astonishing rate -- this is going to be the best visual novel engine on the market, I am convinced!
EDIT: Not only that -- you could write RPGs and adventure games with it as well...