Considering how in Warhammer 40K Commander Shadowsun is now on Aun’va’s bad side yet Aun’va is infact dead and replaced with an AI by the High Council what are the chances that Shadowsun will find out and seize control over the Tau Empire?
I dare say she will get in communication with the Inquisitor that defected to the Tau Empire and learn about the full extent of the Chaos Astartes and the Chaos Gods.
She might learn that there is no difference between a “God” and a Greater Daemon and thus decide to use it to her advantage.
Daemon Princes are Greater Daemons by default and the Daemon Princes of Chaos Undivided are the most suitable as “Gods” for the Tau Empire.
Lorgar, Perturabo and Vashtorr are each worthy for the Tau Empire alongside Tau’va and thus making sure the Religious worship those 4 over the Chaos Gods or the Emperor would be their best bet for ensuring the Tau Empire survives for the Greater Good.
Perturabo’s Iron Warriors do barbaric things for the sake of raising their numbers and Lorgar’s Word Bearers have a habit of preforming skinnings for the sake of appeasing the 4 “Gods” but in the latter case that can be fixed by arranging for only Word Bearers that worship Lorgar, Perturabo and Vashtorr are permitted in Tau territory.
The Word Bearers of the Tau Empire can even use some of the leftovers from the Iron Warriors’ own skinning of their Genetically Engineered creations(required as the Astartes the Iron Warriors make have no skin) to write their Sacred Texts containing Enuncia. They can even takeover the skinning themselves leaving the Iron Warriors to build things thus appeasing Perturabo.
The GMO Creations can be Vat Grown like certain Servitors and be culled before they become self-aware as letting them become self aware is needlessly cruel and goes against the Greater Good.
Considering the Word Bearers ascended Angron to Daemon Prince with Enuncia it shouldn’t be hard for the Tau to have the Word Bearers research how to use it to create the necessary “God” for whatever the Tau need at the moment.
Shackling a couple of Lords of Change, Epidemius(Nurgle’s recorder of Plagues) and Keepers of Secrets in place while using Enuncia to extract what honesty and knowledge they have to create a “God” of Knowledge that serves the Tau Empire would serve the Tau well to say the least.
Imagine: Lorgar, Perturabo, Tau’va, Tau’va Daemons(Tau-themed) and Lorgar Daemons(Book-themed)released by Games Workshop while the Tau in Lore recruit the Word Bearers not working for Kor Phaeron or Erebus, the Iron Warriors(including Daemon Engines) and Dark Mechanicum(also including Daemon Engines) into their Ranks…
An epic ascendency of the Tau!