I don't remember what suggestions I've made in the past, but how about Garlic as another crop, and Olives as another tree? Then perhaps options such as Garlic Bread (Bread, Butter, Garlic) and Olive Oil (Olives and a building, like the Kitchen or maybe a new one) become available. And with vegetable oil now available, perhaps Soap is a possibility (using fruits like the blackberry, lemon, etc. for variety, just as with the candles). Or Cucumber, to make Pickles as well as maybe another type of Salad?
This is purely cosmetic, but how about changing the scenery based on time of day? It might be interesting to see what region our neighbors are (generally) based on the time of day we see. This could also be used to introduce other time-based items and activities...perhaps catching fireflies to make Low-Tech Lanterns?
We have pet cats and pet dogs, horses and show ponies. We even have an Alpaca, so how about making the stream be of use and giving us another unexpected animal--a Seal? It can be treated like the other non-livestock animals and produce various items...or perhaps it COULD be a livestock animal that provides us regularly with a new fish of some sort? Or maybe those fish could be random...the seal could pop up in the Fish Pond now and again and toss out a fish or some other item.
Flowers, maybe? If Soap becomes a possibility, flowers could be used for variation as well as arrangements that could be sold.
And since space continues to be an issue for expansion, how about making the plateau above the Fish Pond to the right of the Mine available?