Something has come up and I am flying out on CX again next month in mid February for 1 week from SFO to MAA and back from MAA to SFO. I think by this point, it looks like all 77K (Doing 870/879) except for KQB, KQX, KPY, and KPZ have Wifi. The chance seems high enough that I should get a Wifi plane. Livery wise - 50-50 old or new, doesn't really matter to me. MAA is mostly operated by the 77G, but also you get some days with the 77K. The days I'm flying to and from MAA are 77G, but anything can change, even a 77A or a 77H. Short flights don't matter much to me