As great as that would be, it's well out of Devereaux's area of specialization; I don't think he'd feel like he could do that topic justice. If you look up his older series on farming, he notes in the introduction and in his addendum on rice farming that he's not as familiar with Chinese history.
He does guest posts though, so maybe there's a chance?
Unfortunately he as a historian specializes in the Mediterranean, specifically Rome.
Yes. Though I'd be more interested in Song China, ever since reading The Gunpowder Age by Tonio Andrande.
He's referenced Andrade's work in the past, so that's actually a possibility, though I think he'd focus more on their military due to his focus and background.