They began recently packaging the Mini as a 2 pack. It came as one cardboard box, both mini inside, so they had altered the packaging. This appeared on Amazon 15th August.
I got this for £14.44 using the any other Anker product 15% off method, basically everything is discounted 15% anyway currently so wait for an item to be discounted, then can add any other product 15% discounted even if isn’t.
Use the code shown but don’t use the add both to basket option, it seems to work on everything, I added this 2 pack mini to an order when something else, I think the Nano was £10.
So the Nano two-pack I’d expect coming, once items get silly low price but must be in cardboard, it’s a logical decision for the Nano too.
Logical doesn’t mean it will be done nor by a date, but I agree with you if not in a hurry, a 2 pack Nano probably happens, and if it doesn’t happen, if you’re waiting a price <£10 for a single Nano is probable eventually.