Say Redcloak wins. Then what?

[Clistenes]

At this moment, Redcloak has no retirement option, not with pissed Xykon lurking around. If Xykon learned that Redcloak wants to quit, he would slaughter him and all other goblinoids. Remember, Redcloak was perfectly willing to stall the plan until Xykon got mad, banned him from regenerating his lost eye and threatened to take the other one. At this moment, Redcloak can only go on, or at least pretend to do so. If somebody destroyed Xykon for good, I think Redcloak would prefer to rule Gobbotopia and wouldn't search for another mad arcane caster to complete the Ritual with.

I think Redcloak is already starting to prepare a "kill Xykon" contingency plan, just in case, and that's the reason he has replaced the philactery; if the heroes managed to destroy Xykon's body again, he would probably just destroy the thing and return to Gopotopia to search a loyal arcane caster, or maybe create one (hunting an arcane caster and turning it into an undead of a level low enough he could control it).

On the other hand, Redcloak isn't really acting rationally; he wants to justify past sacrifices, can't afford to look back and question his past decisions or he would have to acknowledge that he has been a bastard...so he may have convinced himself that the Xykon Plan is the only option, and isn't considering the option of abandoning it for a more traditional approach.

Also, the Dark One seems to wish Redcloak to keep the plan going and to support his intention to use Xykon (or he would have told him otherwise when he sent him a message), and also, he probably wouldn´t be able to beat the Order of the Stick without Xykon, so maybe Redcloak hasn't any other option left now; he's trapped between Xykon and the Dark One, and he HAS to keep going.