Nothing new unfortunately, they simply replaced the old DA* 16-50 SDM with the PLM lens (which seems to be very nice btw).
Hope the D FA 21 is still in cards for this year.
BTW I always liked the idea that Pentax has the 150-450 in their lineup. It meshes better with the 70-200, similarly to how the 150-600 lenses are, but is not entirely big and unwieldy (last I checked, the filter size is 86mm). Sadly it's not a common lens, to put it mildly.
