In theory the Leaf has one of the most "rebuildable" pack in use. So Lack of batteries shouldn't be the defining issue that sends one to the scrap pile. There are now aftermarket 40Kwh packs being made. whether the cost will come down to where the owners of 10 year old cars will be willing to buy them, and get another 10 year or more out of the car remains to be seen. Problem is: most people who buy a used Leaf are attracted by the low price, few of them (but I include myself as one of the few) would be willing to put far more than they paid for the car into a new battery. It is a hard nut to crack. If you buy for 6k-8k but a new pack cost $14K how many will make the commitment, and how many will pay another $6K-$8K for newer used Leaf when the time comes the original will no longer meet their needs?