As long as you don't drive like a nutter, I'm sure you can prolong the life of the "lifespan". I'm at 5000 mi and they still look brand new, (because I don't drive wild and crazy). To answer your question, that is something you would just have to straight up ask the dealer and find out. My grandpa wanted different wheels on his Flex way back when, and because 'he knew the dealer', they swapped them out. Now he's riding on 20" "chrome" bahah. Best of luck!
"If in doubt.. Flat out." - Colin McRae