After the K-mount, Pentax released also the 645 mount roadmap that reveals a new wide (24-45mm), standard (45-90mm) and tele (90-200mm) zoom lenses to be announced in 2013 or later.
The Pentax Q mount roadmap shows plans for a new 80-300mm telephoto and 15-35mm wide zooms, a telephoto prime and a mount cap lens (pinhole lens):
Via Pentax forum
