Ricoh had several other announcements - here is the full list:
Ricoh announces three HD PENTAX-FA Limited lenses for Pentax K-mount.
Ricoh officially announced the development of a new HD PENTAX-DA★16-50mm f/2.8 ED PLM AW lens.
Updated Pentax K-mount lens roadmap released.
New Pentax K-1 Mark II J Limited 01 DSLR camera announced in Japan. See also the Pentax K-1 Mark II J Limited 01 concept movies.
Additional Pentax K-3 III information (video).
Ricoh Theta Z1 is discontinued, new model to be announced by the end of March.