Actually, the US is on the forefront for the shift away from coal. Don't pay attention to what Trump says (that's a generally useful rule of thumb, BTW). As noted here: coal consumption in Canada and the United States has dropped by 40 percent since 2005, and in 2018 alone the U.S. is expected to take a record-setting 15 gigawatts of coal-fired capacity offline.
It basically all depends on China, and to a lesser degree on India. If they can make the switch, coal is basically done for.