This info comes from dslrmagazine (for English translation, click here). The bottom line:
- Pentax K-7 will be the top of the line DLSR
- it will be an APS-C camera
- it will be able to use medium format lenses (developed for the upcoming Pentax 645) with an adapter
- it will have a optical glass pentaprism (Hoya), upper LCD and dial to choose professional modes, with central lock
- no built-in flash
- it might incorporate the possibility of showing simultaneously (on the optical viewfinder) information about other functions, such as live histogram or even... Live-View and video with the mirror lockup (wow!).