I would really like to see monkeys coming in and making messes where the villagers will have to clean it up(that will help with more building points).As a matter of fact I would like to see parrots and other island animals coming in ever so often.
I would like to see the children interacting with thier parents(like hugging each other).
And the teenagers doing something with each other rather than working.
Also I would like to see more puzzles to solve.
The game is evidently great so honestly any changes just adds to its flavor.