This is why I still don't understand the "leasing an EV is smarter" argument. This dealership wants $13,000 for a "new" car lease on a model year that we are no longer in. Meanwhile, if you qualify for the federal, state, and utility incentives/discounts (which, granted, you may not), you can buy an actually new 2019 SV for $20,000 total out of pocket. So the theoretical options are: pay $13,000 and get 3 years of use, or pay $20,000 and get 10ish years of use. I get it that buying an EV is a bigger commitment, and that with the Leaf's battery degradation this can be extra anxiety inducing, but even if you purchased an SV, drove it for 8 years, and then junked it the day after the battery warranty expired, it would still be less expensive on a years of possession to dollars spent ratio than a lease - $20K/8 years vs. $13K/3 years. And if leasing EVs is still the preferred permanent strategy, then over a 10 year period, leasing new Leafs every 3 years at the same rate that you're being offered by this dealership would cost you $13,000 x 3.33 = $43,290.
Unless they're offering you some crazy cheap deal - like $7,000 total out of pocket over 3 years - I would say don't do it....