I, and others, have repeatedly suggested differant levels of puzzles in the new game. Now, I'm ready to make some suggestions on what they should be. Of course, I don't know but assume you'll have 16 or so original puzzles like in VV1 that essentially make it possible for the tribe to live & find some enjoyment on the island.
Level 2 should be improving life such as stone huts instead of grass/stick dwellings. Researching and developing sanitation etc and enriching life (maybe limited commerce amongst the villagers?).
Level 3 could be something like exploration i.e. learning to make maps; build boats etc to "explore" the rest of Isola and maybe create trade with vv1 & vv2 tribes.
Let me know what you think.