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I would be pleasantly surprised if that would be true, but that is very very unlikely. Zeiss are unable to make more than 1-2 new lenses a year, so now we have 2 touits, 2-3 ZM, 1 ZA, 2 Z* high end, and 3 FF Nex?
Developing lenses takes years. We have no idea of what they have on the table for tomorrow.
If I were Zeiss, I would have started developing FF lenses for short flange distance, years ago. But until such a camera exist, they can't end the design and there is no reason for telling everyone else what they are planning.