After talking to Capcom, I'm a lot more optimistic about Onimusha 3 getting a remaster

✍️ What we know so far

Automatic note by LuaCat Games, built from what we know about the coverage (who reported it, how many sites, the story’s history) — not a translation or copy of the source.

The platforms named are PC. So far only PC Gamer has run it, but that's a newsroom that checks what it publishes.

Bottom line: You can treat this as firm, just keep an eye on updates.