DC Watch's Hands-on of the K-3 III

https://dc.watch.impress.co.jp/docs/news/1296875.html (Google English translation here)

https://dc.watch.impress.co.jp/docs/news/1297078.html (Pentax' brand statement with the K-3 III, Google English translation here)

And, the below video recorded the shutter sound and demonstrates the burst modes of the K-3 III:

 

(https://youtu.be/Pmfrk038Go4)

Confirmed SAFOX 13 Layout (in K-3 III)

13 x 9 AF point matrix with 16 points omitted near centre, 41 selectable points

Source: Chinese Pentax Quick News

(with also some dissection photos of the new body in article)