I have not heard of any leases for the S5, simply b/c it's such a hot ticket item, that they can always find buyers lined up, waiting to drive out with one. Notwithstanding, if I had to take a guess, I'd guess the usage value (initial price less estimated salvage value) will be ~ 2/3 of initial price, i.e., ~ 40,000.
Based on this guess-timate, you would be looking at anywhere from a 1,075 to 1,250, on a 39-mo lease. Yes, this is all just numbers and pure guesses (assuming 0 down at time of lease.)
Good luck,