My husband has turned in 2 bmws to the dealer, both 1 to 1.5 years into the lease; he did get another car from them both times. I do think that one time they would have just taken the car as they were out of stock on that model. He did call around to a lot of dealers the first time, and found a dealer who needed his model. He got top price both times. The cars were kept in perfect condition. Maybe this won't apply to your situation, but it does show that leases are not set in stone.