A greenhouse at the farm sounds nice. It could be a setting of something happening in the story, and where you can find an item or a rare Pokemon, kind of like Liberty Garden in Unova. Or at least that's how I see it.
I liked the way that B/W set it up with farms, and heck, I think they pretty much had a farming town(of which I completely forgot the name of, oh well), and I'd like something like that to be present in X/Y as well. Not that I'm an extremely huge fan of the agricultural environment, but it'd be a nice thing nonetheless. :3 And free Moomoo milk would be good, too~! n_n