The food issue will be solved through adding more types of food and the Cooking skill, allowing for more recipes. However getting sustenance from monster fluids is not a bad idea, although it probably fits more as an unlockable sexual perk. Good catch on the bugs too.
Impreg gameplay is probably going to be in the game in the far future. I'm not sure what you mean by shortstacks tho, do you mean small opponents or having the option for a smaller player character? Either case it would probably fit.