I managed to datamine all what I could find in future updates to this game. And boy, am I so excited with stage 6.
So I'll get to the stage 6 boss first, because it's the least interesting to me in my opinion. So throughout the stuff I found, this is the stage 6 boss looks like and its preview of what its HCG looks like.
My guess is that this could be the final boss of this game before they start shifting full development towards Fighting Girl Yuri. Again, the least interesting in my opinion. What actually caught my attention full blast is the stage 6 HCG.
This is what got me incredibly excited for stage 6. And my estimated time of expected arrival of this update is maybe around 2-4 months from the current update. I am so hyped for this.