Nintendo may have just announced a new 3DS XL by using an Amazon listing. As you can clearly see in the image above, that's a New 3DS XL with a Super NES theme, complete with a retro-themed box and button colors on the inside.
This device wasn't announced anywhere prior to this listing showing up, which is odd that Nintendo wouldn't say something themselves, though it's possible that Amazon listed this device accidentally and it could be pulled. If that latter is the case, we've taken a screenshot of the listing so you can see all the details, including the fact that the system comes with a download code for Super Mario Kart, the Super NES version, for free.
This new retro-themed 3DS XL will apparently retail for $199.99 and go on sale November 27th, with pre-orders being accepted right now. However, it's possible this will get pulled, so pre-order at your own risk.