After all, the Adeptus Mechanicus only resurrected the Kastelans, they are a machine from the distant past even in the 30K universe.
Then when the opening of Warhammer World happened I spotted these pictures on Millest's Mediocre Meanderings blog.
I hadn't seen them anywhere else, despite looking and trawling through forums to find any more - no one seems to have any!
There's some really interesting ideas in these pics - including the names - which point to a much broader service than we are currently informed.
If you're into the Kastelan, and the community seems divided, then have a look at these pics below.
From my information coming out of Warhammer World itself, these may be part of an upcoming painting guide or publication. The mystery deepens...!