Originally posted by Adam Pentax needs to solve the lens problem first
What lens problem? Simply go on the B&H page, click the lens link, then the slr lens link, then the <existing> 97 PK lens' available, then eventually select full frame from the options along the left hand fields. One will eventually see that there are some
51 existing marketed full frame lens.
Pentax in comination with Tokina could easily bring out over ten more - such as the former FA's. Sigma could also bring in double that number in full frames.
Is there perhaps another lens problem that remains a mystery