The Fozzie sov system had its first epic test in the most recent great war and it demonstrated one truth is still true: all things being equal, the side with N pilots is defeated by the side with N+1 pilots. No amount of strategy or doctrines could have saved the Imperium from the wall of enemies arrayed against them, but what for certain doomed them to lose sovereignty was the lack of numbers to defend their space. The Mittani can blame it on Fizzle Sov and how the any attacker can aggressively entosis while only the sov holder alliance can defensively counter-entosis, but really he's just trying to deflect blame from the Imperium's failures in diplomacy, grand strategy, and leadership.
Another lesson from this war was the sheer concentration of ISK in the hands of gambling site owners. This war would not happen without the infusion of ISK from IWANTISK bankers looking to settle a score with parts of the Imperium. While the ISK was not necessary to the victory over the Imperium, it was necessary to motivate several parties to make the effort to see it happen. Once they found the Imperium unable to withstand the assault, natural predator instincts took over.
I fear the results of these rich individuals learning of their power that the ISK can buy. Its possible we are entering the Age of Sovless wars where holding or taking sov is a secondary consideration, and the real factors have to do with who the ISK holders want destroyed. After all, if you can be paid to fight instead of having to rat for your ISK, wouldn't you take that option too?
The war for Deklien may be over and parts of the Moneybadger coalition breaking up, but I expect hostilities to continue for a long time. It was years before CVA restored their dominance in Providence and the area of the North that was razed was many times larger and is now being balkanized into semi-friendly/semi-hostile kingdoms. And don't think for a moment that the Goons will sit in Saranen forever pouting over everyone in the playground coming to kick their sandcastle over. In the end, this upset of the status quo in the North is good for everyone involved and the new life breathed into the Reasons To Be for both winners and losers will fuel wars for much time to come.
The real question is how will citadels and capital changes affect the next war?
Interesting times indeed.