It would be cool if the option to funnel feed yourself was added at some point. Maybe even the ability to funnel feed your employees at the donut shop with fattening dough.
Another thing for a future improvement would be the ability to go to a location and people watch. See how much your society fattening escapades are affecting people directly, rather then through a percentage marker and a little flavor text.
But for now, option 2, 4, and 6 seem like an easy thing to work on right now after that giant update.