What happened to the Pentax 645 system?

The upcoming Ricoh press conference got me thinking about the company's current line of photo products and I realized that this year they were supposed to announce three new 645 lenses but unless I have missed something, there has been no word on those products. The expected new 645 lenses are:

Before the 2013 Photokina show there were some rumors that a new 645D camera will be announced during the show, but this never happened. Is Ricoh Imaging still committed to the 645 medium format system?

As of today online stores still have the Pentax 645D camera listed for sale at $6,996.95 (the original price at launch was $9,995.95)