I think that’s very likely given that he refused to quit and they still haven’t managed to fire him yet. This implies that military is backing Zaluzhny and that there’s a growing rift between the civilian government and the military now. I can’t imagine that Zaluzhny is just sitting on his hands while this is happening. He’s likely consolidating support from the top military brass under himself right now, and once Zelensky tries to officially fire him, that’s when the coup could get under way.