I was thinking about possible new events that could take place with the new system and I came up with one I thought could be pretty good:
Very rarely a message will pop up saying something like "Reports indicate soil toxicity in the wasteland at all time low" (Could be changed, but something that doesn't blatantly tell you what's happening), after the message somewhere on the map a small sprout will pop up, once located the sprout will either be left for a certain time to mature (Or possibly could be tended to by the Cultivator) and will then bear 3 very potent fruits, that give large hunger & perhaps health points. Once the fruit has been gathered or left for a certain time the plant will die off.