Nice to know!
Zeiss Distagon lenses should be fully manual, so if the overall quality is great Novaflex adapter could be a good choice too
Using the Novoflex adapter, I think you would still be unable to use manual lenses stopped down and would have to operate at full aperture. This is too bad, because the Novoflex is likely to be built according to better mechanical tolerances than the Metabones.
Having used a Sony A7 with a Metabones Mk3 adapter, I have mixed feelings about the combo. The internal adapter reflections coupled with the internal sensor reflections (on night shots) can spoil situations where the extended dynamic range of Sony sensors could otherwise be greatly appreciated. The sensor reflections appear to have been fixed on the A7ii.
Another aspect to mention when operating the camera with large lenses such as Zeiss Distagon lenses is that the whole camera + adapter + lens combo will be unbalanced. There will be too much weight on the front, which makes for a not so pleasant experience when shooting hand-held.
That being said, until Canon comes with a DSLR featuring an optional EVF, using a A7 body might still be the better solution for precise focusing with manual lenses.