I think the choices are either to buy out the 2020 or trade-in on purchase of a new one (sales tax credit in PA, right?) — the lease doesn’t make sense.
I stopped following the Nissan palace intrigue after Carlos abandoned his job in a piano crate. Are the engines/CVT in these mostly problem free, or does OP need an extended warranty?
I’d also compare new/used financing rates and line that up first
