I'm still a few months out from my lease end on my 2015, but I'm pretty disappointed so far. I've only talked to my original dealer, and I was offered $9400 on my $10,800 buyout.
The last time I had to buy out a lease on a Suzuki, the price kept going down as the date approached, but I don't know if that will happen this time. When I'm down to 3 weeks out, I'll probably reach out to other dealerships via email to see what they will offer. It sounds like that's the strategy.
Its super frustrating that it looks like offers were several thousand less just 4 months ago, and Nissan is artificially jacking with it. Not that long ago I was saying "Absolutely I will buy this car!" but now I'm looking around at other options. New Focus EVs, Volts, and Bolts look like pretty good values. I wish the Ioniq was available outside California because my 2005 Hyundai was still a great car after 10 years.