Election Delay?

   Now that the president has called a national emergency because of the corona virus, and states have delayed primary elections for the same reason, is it likely that the president will also call off the national election scheduled for November?
   And if he does, will he refuse to leave office when his term expires in January, on the premise that elections were not held as the Constitution specifies?
   In turn, does this mean he has suspended the Constitution?
   We live in interesting times.