Just sharing this here map what I made (also shared this on another forum).
It's only good for general impressions, so please do NOT take specifics literally...like how THIS planet should not be in THAT region. It's just an image of what I felt when I was looking at the new
40k map a bit, which reminded me of the split/fall of the Western Roman Empire and Eastern Roman (a.k.a. Byzantine) Empire.
What I kinda saw was the Eye of Terror/Fall of Cadia being the part the Visigoths completely took over from the Roman Empire and settled there, the line of storms generally tracing the coastline into Euroasia, then the big Malestrom blob being the Aegean Sea, on the other side of which is the heart of the Byzantine Empire.
Not the 1st time the Imperium has been compared to this. Holy Terra was always said to be on the Western Side, Ultramar on the Eastern side, Imperium Secundus, etc., etc. I just did this shoop as a fun arts & crafts exercise in Powerpoint, thought to share it here.