Update:
Hi Guys,
I have some updates for you regarding the questions you have asked in the thread.
1. Will future expansions require old expansion papers? Can we sell them off?
Sorry I'm afraid there's no answer to this as Storm8 does not speculate future game developments. I would suggest that you keep both old papers and new parts just in case. I am keeping mine and sell off the spares.
2. For members who have not fully expanded their farm, when will the new expansion parts drop?
New expansion parts will not drop until Brave New Future is completed as I mentioned earlier.
Once you complete the Brave New Future goal, your Discover The Future goal will appear.
3. New expansion parts currently come only from the Order Warehouse's deliveries.