Yes nursing mother's should be able to do things, even if it just research. Another thing I would like to see is that they could build boats, to fish and to visit other island and maybe even to migrate there, More things to collect and things to do while your building the hut etc. I live in the tropics and I can tell you that after a cyclone there is plenty of cleanup and repair work to do, so the weather changes would be a definate plus.
Another thing I agree with is that a marker to better tell where you ar in gaining the skill levels.It was just so hard to tell once they became adepth, how far along you are before you became a master etc. I also agree that
And Yes more new food to add to the food bin, (ie new fish, or hunting spoils, eggs or birds)
I loved VV2 more than the first one as we had more to do. LOL my whole family had their own village and we all can't wait for VV3. And I liked to know who where the parents to who.