Legend:
Grey squares - Selectabe crossed AF points
Hollow squares - Selectable linear AF points
Small circles - Non-selectable linear AF points
Btw, Mistral, where did you get this diagram? :-o It must belong to a product story later! ;-)
Update (Nov 9):
Mistral75 advised in his reply (via his latest comment below) that the above SAFOX 13 layout was a sensible guess based on the original official diagram showing cut-outs in the lines (as broken lines) of the finder marks and brackets, which was actually a collaborative work created among three members in the French CDI Forum.
To verify if this could be really true, I have made a new overlay diagram with their assumed SAFOX 13 with an official SAFOX 12 one. Note that with the new magnified APS-C viewfinder of the K-3 III, now the covered AF areas of the K-3 III and the K-1 are more or less the same, except the extreme peripherals:
My own wild guess Pentax has opted to keep the old SAFOX module and add/build new AF points based on the old AF module, since the number of crossed AF points remain unchanged, i.e. at 25 nos.
In this connection, I don't think the above brand new layout is completely an accurate guess. Instead, a 5x5 crossed AF points surrounded by another 6x6 linear AF points in alternative / interlaced manner would be more sensible. As for the remaining linear 40 points, they can be put/added at the two sides as well as at the top and the bottom, surrounding the central part of the AF point crowd, making up a total of the 101 points, which are all visible and selectable in groups.
Besides, just for the sake of seeing what the SAFOX 12 would look like if it is yet put into the K-3 III, the following overlay diagram is also made:
