Unless things drastically improve in the short term I don’t see how the Olympics can be held when many athletes are likely having a hard time even training for them right now:

Japanese Prime Minister Shinzo Abe addresses Parliament in Tokyo on March 23, 2020. A decision to postpone the 2020 Olympics “may become inevitable” if the new coronavirus outbreak makes it impossible to hold the Games safely, Japan’s prime minister said on March 23.

Postponing the 2020 Olympics “may become inevitable” if the new coronavirus outbreak makes it impossible to hold the Games safely, Japan’s prime minister said Monday.

Shinzo Abe told parliament that Japan was still committed to a “complete” Games, but added: “if that becomes difficult, in light of considering athletes first, it may become inevitable that we make a decision to postpone.”

The comments were his first acknowledging the possibility that the Games may not open as scheduled on July 24 as the coronavirus continues to spread across the world.

Korea Times

You can read more at the link.