So after some consideration, I didn't like the way my vote turned out and
@BronzeTongue raised some cogent points. While I still don't want to argue the merit of our perspective against R'hllor's own, not because I don't think we could not engage him in some lively debate, I do think that he's very confident in his own opinion and that we will have to do something very groundbreaking in order to change it.
Reposting plan now.
[X] "So if I should fail, your plan will remain in place. Perhaps me for a martyr to light that final pyre and transcend what was and what could yet be."
-[X] Contrary to your expectations, this is not you speaking out in anger, but understanding. If things had fallen so far by then, you would
hope to spite the Void, Asmodeus or whatever had heralded the destruction of your ambitions and hopes, even if it's upon the back of R'hllor the Red's pitiless march against the dying of light.
-[X] There is much you do not agree with R'hllor upon, most evident in the false equivalence he weighs the freeing of slaves and measuring the merit of their loyalty upon the balance of the same blade, duty. Such mental arithmetic conducted is no less like that which Asmodeus performs when comparing unmoored soulfire against living and breathing mortals, and then deems them one and the same, fuel for a war without end and personal vanity.
-[X] And through seeking freedom upon twisted paths you ever shall walk in the company of others who have made the same choice, not freedom without worry or concern, but the ability to choose and the ability to reconsider. Better perhaps to say that you advocate agency rather than ambition without end, or you would not strive against becoming a god yourself.
-[X] And let it be said, you do not intend to fail.
-[X] "Let's make sure that won't be necessary, shall we?"
-[X] "I and a collective of other deities gather in common purpose, to place She of Many Colors in a compromising position, one with which a mighty blow could be dealt to Her, their plans sent tumbling, out of the picture for as long as it takes for them to lick their wounds. If we should be so lucky, let it be another
age. For myself, I would settle for a mere century. She will not have the time to regain that lost ground, while we will far beyond the horizon, as this is the pivot upon which the future shall tilt."
-[X] You explain the essentials of the plan if not the details so he can better empower the foci of the trap.
-[X] If he agrees,
you have some questions he might be able to answer, though you aren't expecting him to share everything or really anything. What he does will inform you of what he wants you to concern yourself with.