Originally Posted by
Cilia
The issue with that angle is that Elidibus is a schemer (or as senpai puts it, a snake); he doesn't make direct actions or force things to happen. He nudges, he whispers, he manipulates - leading a military coup sounds extremely out of character for him.
Elidibus doesn't need to lead a coup against Varis. He's already gotten him to insist on binding eikons instead of eliminating them, create supersoldiers capable of using the Echo like Dragon Ball Super's Ultra Instinct at the cost of roughly 100 : 1, and biologically and cybernetically enhance what is implied to be a Garlean child into a cybernetic magitek monstrosity (Inferno) on top of all the other horrific things in Castrum Abania. If a parallel to previous FF antagonists must be made, I rank Varis as closer to President Shinra than Rufus. Lolorito is already fitting the bill of "morally ambiguous male antagonist who is redeemed and lives" (that's an extremely narrow character archetype, by the way) by helping the protagonists for his own ends rather than out of benevolence. Do you believe it realistic for Varis to do the same, given the above things he has directly or indirectly consented to? Why is another character of the same (extremely specific) archetype needed (not that Varis is really morally ambiguous in light of his implicit consent to all of Zenos' horrific experiments)?
... past that, I am going to wait and see what 4.2 brings. The main chunk of it will probably have to do with Yotsuyu, Gosetsu, and be "4.1, Doma Style," but with information from the stinger guesses can gain accuracy.