When the 18 nav was going through it press drive phase, a cpl journalists noted that lincoln was working on an air suspension opt for it, but id take that with a small grain of salt. The ccd suspension is the current equivalent to it and as far as expy goes, has been lauded for how well it works. Seeing as how the kr usually slots btw the ltd and plat(near the flagship trim), i would believe it would be an opt once the trim is finalized and released like it was on the last gen.