That's pretty much what I have said, except I believe the fleet upgrade is completed now and there are no "old F seats"
QF52 last week had the F cabin, sold as J. The Lounge Manager in SIN had no idea that they still existed. As a community service to QF, I gave him feedback on the refurbishment. Thanks to all you fellow AFF'ers, I had the relevant info. Alan Joyce didn't even thank me for providing the pro bono training for his staff! Only (slight) downside was that it was a points upgrade. As soon as it was confirmed , I went online and selected 3A; again, thanks to advice from you friendly folk.
A "heritage" FA was overjoyed to be working in"F" again. J food and bevvies, but F quality service from him. He was fantastic. And I slept sooo well.