That article certainly fleshes a few things out but the whole thing still reads like something that's EXTREMELY speculative. They're basically saying there might be some money and they might get it but they're not sure who from yet.

If they're aiming for Vinnik's money then surely first he has to land in Russia and other jurisdictions definitely won't want that to happen. And since he's a professional money launderer I assume the money is deeply buried if there's any left. I can't see him neatly parking some BTC in a jar in the kitchen for a rainy day.