So many keep hoping for Leica to release an EVF version of M10. I don't agree that it should be named M but as a "SL-M" or something it would be a wonderful tool. This new Sony is about to be the same size, more or less?
I'd fall for a FF CL ... But I want that EVF right there, or I'm not interested at all.
The S5 came tantalisingly close to being a valid L mount body for me - but I'm so happy with the Z6 that I don't need to duplicate what it delivers.
I want a RF style FF body with an EVF mostly because of size considerations - but again, the Z6 handles so well that I hardly mind its slightly bigger size compared to the M10, and of course, it offers a very comfortable, slick user experience I'm not willing to see compromised just for a bit less bulk. The A7C looks to be very small for an FF body, though. And I will say here that I managed well enough with the A6000. But I feel that for a new body, it's pretty dumped down, especially considering the rumored price range.
Again ... I think I'll either wait a bit to see if Nikon comes up with something more interesting at the low or high end; if not, the Z50 would boost my tele reach for a very reasonable amount of money *and* give me an even more compact package that handles mostly like the Z6 ... Yes, it's APS-C, but that doesn't have to be a downside in this context (i.e. regarding size and weight vs. performance). And the Z50 has most of the goodies I want, minus the joystick ...
I admit I may be especially biased at the moment because I just came back from an outing with the Z6 (with the 70-300mm AF-P on the FTZ), and it was a very pleasant experience again, like almost every time I'm out with that camera. I may actually no longer be willing to give up a considerable amount of convenience just for size considerations anymore. Of course, the Leica M experience is different and, for me personally, even more enjoyable - but an oversized A6000 won't offer something similar, either, and I'll take the superbly well balanced body of the Z6 any time over everything Sony has to offer right now.
As of yet, apart from its size, the A7C appears to be somewhat shrug-worthy to me, to tell the truth ... But maybe it has some gizmos under the hood that may change that impression. And I'm still not totally uninterested - because trimming down my Sony stuff to the bare minimum is another option now (the alternative is selling all Sony gear - which I would probably have done already if it wasn't for two really nice and, above all, *small* lenses, the Sigma 45mm f/2.8 and Samyang 35mm f/2.8 - oh, and the super-quirky, but also super-fun 7Artisans 35mm f/1.2 on the Sony A6000 ...).
M.