I have not heard anything, but I think it would be a great idea, just like how they had the Garden Boxes in Skyrim's Homestead. Maybe make it a special item so people don't exploit it.
I would also really like to be able to buy or craft a fire that fits in a fireplace for provisioning. Of all the crafting stations we have, both of the provisioning stations are horrible.
That would be really cool. If you could plant trees and plants that offer you provisioning supplies with a cool down for how long you can take stuff. You could create a full on veggie garden.
I was thinking it’d be cool to do something similar for alchemy reagents. You could grow them in your house and pick up a couple a day....
Also agree that the provisioning stations aren’t great for indoor use... I currently have a fire pit in the middle of the kitchen that looks pretty bad! Would be good if there was a fireplace option.