On the latest roadmap for D FA lenses, there's still 5 lenses left that haven't been released yet.
* Wide single focal length (perhaps D FA 28 f/2.8? or D FA 24 f/2.8?)
* Standard large aperture single focal length (D FA 50 f/1.4?)
* Medium telephoto large aperture single focal length (D FA 200 f/2.8? D FA 135 f/2.8?)
* Ultra wide large aperture single focal length (D FA 20 f/2.8?)
* Fish Eye zoom lens
Those are labeled 2017+, and will be released in the above order. So I Think we can expect the wide, standard and medium telephoto next year and the ultra wide and Fish Eye in 2018. Things are cooking, just not ready to be served yet.
Personally, I would like a new DA roadmap but I Believe Pentax is focusing (!) now on D FA lenses. DA lenses are pretty much covered, anyway and D FA lenses can be used on APS-C too. I would welcome a D FA 135 f/2.8 with in-lens motor, ED glass and weather sealing so I could replace my aging FA 135 f/2.8 with something more modern.
I Believe Pentax is looking into mirrorless APS-C, that's the future. A Pentax P-mount (Prince/Princess) or KJ (King Junior)
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