I think what happens with the caravan in Tijuana will play a big role. Heard some reports Tijuana wants the UN in.
If Trump can stare 'em down there the UN will lose the gravitas it takes to jerk the smaller countries around, IMO. WTF is the UN without the US and the US military, anyway.
Have to see how all this shakes out with the caravan. Timing is about right wrt to Marrakech meeting.