We got words from very highly trusted sources that Sony will have a big announcement event in May! While there will be likely one new camera only (An A-mount A77II) there should be also a new FE lens announcement! And if the Sony roadmap is still valid than this should be two new Zeiss lenses: A f/4. ultrawide zoom and a fast prime lens (probably a 85mm f/1.8 or f/1.4).
Sources also told me Sony is pushing the FE lens development. It’s the first priority in their imaging division!