Strichnyne

I wanted to get anyone's opinion on what a good $$ for a 36 month lease would be on a 2017 GS350 F-Sport. My current situation is as follows: I am in the last 100 days of my 2014 IS350 F Sport lease and I got the 6 month early out offer (directly from Lexus) to another lease way back in January and I continue to receive offers from the dealership for $3500 off in incentives and loyalty cash. In the DC metro area (Linsday Lexus), the lease special is $499/mo for 36 month with $4699 and that is for the F-Sport version as well as the regular version.
With that, I was told my payments would be $700-$800 or even more and that doesn't make sense to me. I expect the payment to be higher than $499 obviously with taxes and all the other stuff but to be $700 or higher is crazy talk. Any thoughts?

Strichnyne

Or...maybe not.