I expect him to “convert” before he leaves office, thus being the first Muslim president.
He might also do it as another diversion if something else really bad happens. He is holding this and the homosexual card in reserve in case a distraction is needed.
This would fit 0's modus operandi. His response to a scandal wildfire outbreak has often been to start a backfire with another scandal or two.
It might get interesting if he comes out as a gay Muslim.