Rumors are abound about that the NES Classic is being discontinued, many stores, especially in Europe are cancelling pre-orders because they don’t think they’ll be getting anymore.
The rumors have persisted so much that Nintendo of America President Reggie Fils-Aimé has addressed it saying that Nintendo of America is dedicated to producing more NES Classics. However, even though I was lucky to get one through Amazon Prime NOW, I have yet to actually see an NES Classic or a Classic Controller on a store shelf and many of the big retailers in my area have never gotten a second shipment since launch.
So the NES Classic might be dead outside the US and even in the US. I see it as Nintendo is gearing up for the Switch launch in just 17 days so I don’t think the NES Classic is their priority, but after the Switch launches and there is still a demand then they’ll probably make more.