Je vais me répéter, mais cette image vient d'un commentaire sur war of sigmar, et l'auteur lui-même indique qu'il s'agit uniquement de spéculations :
I dont read any corruption in that story, just a full on invasion of their space.
I was expecting Tau vs Deathguard as a likely possibility for one main reason; there is a lot of newer art featuring the two fighting, and afaik new art is rare in PA.
Also made (before this story, but so far it seems correct) an entire breakdown speculative prediction, basing on a rumor that there is 9 books total, and the fact there is 9 primary antagonists in 40k. (even included names that definitely will be incorrect for the last 3)
The faction symbols colored red are the 3 factions that were not represented in the initial announcement, as I said before, I wonder if maybe that was not a mistake but a hint on what 2.0 codexes are inbound, because sisters had only a small new rule in their feature psychic awakening book, and they are one of the three "forgotten" ones.. everything also points to admech getting more than the usual psychic awakening support this year, with could well be with a codex instead of a PA book.
the green ones are what I think will be those featured on the cover and getting a new character.
The last one; Harlequins & Custodes versus Daemons might be an odd duck.. but, I think it might be a follow up and return to the first trailers (and book) were inquisition and harlequins conspire... and then it makes sense.