Sorry to jump back to the Charlie/GW discussion... and to do so with a wall of text. but it was interesting, and I was without internet while it was happening
The underlying assumption here is that Charlie is fighting to keep the Arkentools from being brought together as they are Fated to; either because he knows the dish would be taken from him in the process, or because the results of this Fate are horrifying to him, and he is willing to risk death to prevent it.
The main evidence I offer for this is Charlie's particular brand of paranoia. Assuming from some of text updates that Fate seems to force its path by luck manipulation (all those arrows being blocked), Charlie needs to protect himself from Fate removing him.To accomplish this, Charlie controls every aspect of his territory; the archons are essentially his slaves, and there are no other units capable of thought/free will near the city. He then sets up an economic strategy that makes him both have an absurdly large army, and never directly involves his city in conflict. Fate has no chance to kill him and release his tool to meet with the others, without bringing a giant war to his door (which he actively prevents by being everyone's "friend"). It also gives him an excellent excuse to meddle in most of the world, letting him keep the tools from ever trying to gather.
So with that, my take on the goblin rebellion that got rid of Saline and the timeline it was part of:
-Charlie knows of a side that has one arkentool attuned, and has a caster that is fated to possess another (given the intelligence gathering abilities usually ascribed to him, figuring out Wanda's predicted attunement doesn't seem ridiculous). For his own reasons, Charlie does not want the tools assembled as they are fated to be; this situation is pretty clearly Fate ticking, and starting to gather them, so he needs to put a stop to it.
-Charlie tries to kill off the two tool weilders with the rebellion. It fails, because Fate protected them by having them out of town (same as finding all the dwagons for Stanely when he took out Faq; getting absurdly lucky)
-Stanely inherits, worrying Charlie, but starts wrecking his kingdom pretty thouroughly trying to find the Arkentools (note the battle that was lost in the opening was because there was a gem which was left behind against the Titan's plan). Charlie keeps an eye on things, joining the coalition to crush them when they solicit him, but seeing things working out without his help. He wants Parson so bad because he is a wild card, as Jojo says; with him, he can put off the Fate for a long time to come (or even permanently defeat it), which is why he is willing to risk a unit with free will. But then, Volcano saves the day for GW and dashes that chance.
-At this point, Charlie has learned a lesson. he keeps quiet, doing what he can from the shadows while waiting for his opportunity. He strikes on a day when Fate is uncertain (according to Marie); this is his chance to derail Fate's plan, here comes Kingworld (its unclear whether kingworld is what made the day uncertain or if the day was always a turning point in this theory). But note that he is striking with uncharacteristicly direct force (ie blackmail etc) to try and end Wanda, the tool wielder, then and there. With this rare day when Fate is uncertain, Charlie has a chance to either delay/prevent the gathering of the tools, so he is willing to risk a fair amount.
-Having missed the uncertain day this time (it looks like that window was pretty much right after Kingworld), he has to either make another one when he can, or wait for the next one in order to stop GW. So he will back off for a while and try to move more pieces in place; we know we get one more at least because Charlie didn't go all in yet; he is taking actions which will let him preserve his place in the world in the aftermath, which means he knows he gets more chances. This next strike will be with most of the force he can bring to bear, since it will likely be his last opening (though there may be more depending on how long it will be before the Fated uniting of the tools).
A lot of that is speculation, but I think the ideas of Charlie as fighting both Fate and the uniting of the Arkentools have been well established in the comic itself (or text updates), and that is at the core of most of the guessery.