I'd like to be able to sell multiple items at one time without dragging them all to the sell box individually, I get up to 150+ apples some days and it's a pain. Not having to click the "take" box for apples would be nice, too.
I only buy apple trees because they have golden apples, I've gotten up to three a day. There's no advantage to pear or orange trees.
It would also be nice to have a playground for the kids, so playground equipment in the town section would be great!