The International Olympic Committee agreed to add the following five sports to the 2020 Tokyo Olympics program:
A snip from an article at Olympic.org:
… The additional sports in Tokyo will not impact the athlete or event quotas of existing Olympic sports or be binding on future host cities. The current athlete and event quotas are unaffected.
… The inclusion of the new sports will add 18 events and 474 athletes, with equal numbers of women and men for all sports except baseball/softball, which will have the same number of teams but different player totals, because softball teams have 15 players whilst baseball teams have 24. Tokyo 2020 will rely heavily on existing and temporary venues to stage the competitions.
Source: Olympic.org 8/3/2016
A couple of notes from the media in Japan:
Source: Sponichi 8/4/2016
[UPDATE 8/6 @ 2:15am]
A couple of notes on baseball at the 2020 Olympics.