We thought a new Otus lens was coming a few weeks ago from Zeiss, but instead they launched the Milvus line of manual focus DSLR lenses. In the past we'd been told that the next Otus would be a 25mm f/1.4, but it looks like it may not be that wide.
New reports are saying the next Otus will be a 28mm /1.4 Distagon T*. This makes a lot of sense since there isn't a 35mm option in the Otus lineup. We should see both a Nikon and Canon mount version announced some time in October.