Its a bit more complicated than that as there is a substantial amount of new aircraft arriving with the new product (A35K, 78X, last 4 77Ws, and then 77X) plus a significant amount of aircraft leaving the fleet in the coming few years (mainly the 744s, 3 772s). The 77Es and 77Ws look like they will be done within two years, with a good chunk done under a year from now. During that period the new 77Ws will be delivered and the old 772s gone, plus a few 744s. That creates a good increase in the chance of getting Club Suite on a flight within a fairly short time period. The hard part seems to be the 787s and A380s, those would probably take another 2 years. I'd say destinations that exclusively get 787 service are out of luck for a while, and those with 777 service will finally find (some) enjoyment in those aircraft.