How likely is it that the Electoral College system could be scrapped?

Michael Moore has published a 5-point to do list for people following the election. One of the entries says “The only reason he’s president is because of an arcane, insane 18th-century idea called the Electoral College. Until we change that, we’ll continue to have presidents we didn’t elect and didn’t want.”

While what he says may be true (and I am not educated on how your system works), is this even a possibility? Especially with Trump as President and a Republican Congress, how likely is it that this will even be considered if they have just won an election because of this system (and have before)?

To what extent do you agree with his premise?