The CFEx cards are pretty ubiquitous across high end cams now, so I don't think you've got much to worry about. In fact surely it's SD cards that are dated now. Using a single XQD/CFEx card slot in the Z6 was the biggest mistake Nikon have made in a long time, imo. Bad. Those cards are soooo expensive. And I had a 120Gb XQD card fail on me. Ask me how I felt about that. Adding an SD card slot in the Z6II (plus the ability to use a proper control grip) were things that should have been done on the first model. Rare for Nikon to get things that wrong with a new cam, tbh. Canon's first ML FF cam had no IBIS, which instantly ruled it out for me. But then; Sony's poor (by comparison) UI and ergonomics are their 'weakness', so I suppose it all balances out.
Actually no; Nikon's new Z mount lenses are all redesigns, to make better use of the larger lens mount aperture. This is why the Z lenses are pretty much all optically better than their F-mount equivalents. The 50mm f1.8, for example, is significantly better than its predecessors, and any of the f1.4 F-mount versions. I know, because I've owned most of them! Sharper corner to corner, better colour rendering etc. Superb. The f1.2 and 58mm f0.95 lenses are another level again. Now I'm 'invested' in the Z system, I will say that I don't think I'll be buying any more 'modern' F-mount lenses, perhaps maybe the odd older 'exotic' lens or two, but I wouldn't buy say the F-mount 105mm f1.4, however nice it is, as I'd rather wait for a Z equivalent to be available. I doubt I'll be swapping my F-mount 70-200 f2.8 VRII for a Z-mount version, as that would cost a lot of money for improvements I can't really justify. It does annoy me I cant use my older, superb 105mm macro in AF, as it's a mechanical version. Ditto my lovely old 85mm f1.8; again, a mechanical AF version. These will possibly be 'replaced' by Z-mount versions at some stage; the focus stacking feature on the Z cams means I'll be wanting a new 105mm macro. And some of the nicer Nikkor F-mount lenses, such as the DC 105 and 135 lenses, are also mechanical AF. Shame. But; given that the F-mount is now 60+ years old, it's inevitable that technology will end up producing something better. The F-mount was developed specifically for SLRs, which are compromised by having a mirror box (something rangefinder cams like the Leicas weren't, of course), and the 44mm lens mount diameter was chosen to help keep lens sizes down (notice how pretty much all the Z mount lenses are actually physically larger than most F-mount equivalents). Everything's a compromise; in 1959, the current lens technology was deemed more than adequate for most uses, so that's what stuck. One of the most significant downsides of Sony's lens mount is its small diameter relative to Canon and Nikon ML systems; as sensors get better and higher resolution, so lenses will correspondingly need to improve, and as good as many Sony/Zeiss lenses are, there's only so far they can take things with that limited lens mount. That is the key factor, knowing what I do now after 3+ years experience with the Z-system, that would put me off Sony. But of course; Sony is fine, there's nothing wrong with it, so it's not a good reason to not buy their stuff, it's just MY reason.