They will eventually move to this new RFID entrance in all of the parks, but the question is when? Nobody really knows yet. I do know that the EPCOT testing of this was an unmitigated disaster at times. So maybe they learned what they needed to learn from that. Personally, I think that we will see a sudden "flip" to RFID tech all over the property soon. Sure, they already use some RFID in areas, but I mean RFID park entrances, RFID room entrances (in ALL resorts), ect... seemingly all at once. I say "seemingly" because I know they cannot literally do it overnight, but I think that it will all happen very fast, and very close to one another. Like RFID park entrances installed at at once, then several weeks later an installation of resort room entrances.
And to answer another question, from what I have seen, they already have embedded RFID in all KttW cards. This is likely the same with the printed park tickets by now too.