I agree with Ebbie's comment on 6 Dec about Trump's age and health, especially his diet and lack of exercise.

I also still think that the internal pressure of the gag orders, not being able to let that constant stream of internal lava out of his system, will be the trigger point. Just look at the photos of him trying to stop himself from unleashing all of that negativity onto the world. It has to be affecting his blood pressure and his heart - well, if he has a heart, that is.