Now based on literally every piece of evidence I've read both on and off this website the entire Entente by 1917 was financially screwed before the US entered the war. Russia, Great Britain, and France had sold off all their gold reserves and any other assets to prop up their currencies, what's more from what I've also heard the US had planned to cut off any further loans to them and that Wilson was even going to threaten to call in all their debt if they didn't call it quits and even (though this one I'm not sure of the accuracy of) was going to force GB to end the blockade against Germany so the US could trade in central Europe again.
So taking this into account what kind of gains can the Germans get if the Entente were to economically collapse?