Agreed. So far I haven't seen any aftermarket props for the M5P on eBay; there's all OEM. It's still a bit early, the drone just launched; there's no way for anyone to make that new design this quickly. I would say get your orders in now...
Couple of suggestions:
If you have DJI drones still NIB or not yet flown or activated, I would go to this DJI page and capture a screenshot of the details just in case the page is blocked or goes away. That way you at least have the information...
Unless I hear otherwise, I'm going to keep my equipment sealed in the box until next Spring. No one knows what will happen but this video might provide some additional information:
(not me, not my video)