Your insurance adjuster has a lot of power in this situation. When my 3 series was stolen earlier this year, the value of the car was higher than what I owed on my lease and I got paid a hefty sum for the difference. It will all depend on what the market value of that car is right now. It is unlikely to be higher than what you owe on the lease.
You may also have a specific coverage on your insurance which pays out the full msrp and if that’s the case you should receive a newer version of that car.
How does an airtag prevent theft? In my area the cops won’t pursuit this.