The NPB held an executive committee meeting in Tokyo earlier today. Among some of the issues that were discussed:
[UPDATE 7/5 @ 10:03pm]
The committee reviewed nine collisions plays at home plate from this season. They agreed on eight, but opinion was split on a play from June 12 that involved Orix’s Katsuki Yamazaki and Yokohama’s Yoshitomo Tsutsugo. The umpires overturned their original out call after reviewing the film. Committee members could not agree on one ruling.
Source: Nikkan Sports 7/5/2016
[UPDATE 7/8 @ 12:43am]
The NPB is planning to send an official to all twelve NPB teams to explain their proposal for changing the collision rules in detail. The twelve teams will be visited by an official before the All-Star break. Additional discuss/ions will be held during a players association meeting on July 15. If an agreement can be reached, the NPB will be able to push the changes through during a rules committee meeting on July 16.
[UPDATE 7/8 @ 9:36pm]
The NPB visited Koshien Stadium today and spoke to Hanshin (about thirty minutes) and Hiroshima officials (over an hour).
Source: Daily Sports 7/8/2016
[UPDATE 7/9 @ 10:59pm]
According to a ZakZak article by Yoshifumi Ejiri, the JPBPA feels a mid-season change would be unfair and would rather see the rules updated after the season. The association is also unhappy that the NPB more or less ignored their request to start the 2017 season a week later out of consideration for players that participate in the World Baseball Classic. They may be unwilling to make concessions unless the NPB is willing to give a little as well.
Source: ZakZak 7/9/2016
[UPDATE 7/12 @ 1:54am]
The NPB visited Tokyo Dome on July 10 and spoke to Yomiuri and Yokohama officials.
Source: Sanspo 7/11/2016
[UPDATE 7/16 @ 2:25am]
The players association is not satisfied with the explanations offered by the NPB and are planning to oppose making changes to the rules before the start of the second-half of the season. Motohiro Shima, JPBPA chairman, believes the players have to give final consent because they will be the ones playing under the new rules.
[UPDATE 7/17 @ 1:32am]
The NPB held a rules committee meeting on July 16. They are ready to push the new collision rules through for the start of the second-half, if they can persuade players to go along with the changes.
The NPB met with teams to explain the new rules. Teams are scheduled to hold meetings on July 17 to provide players with explanations.
[UPDATE 7/19 @ 12:42am]
The NPB decided not to make changes to the collision rules at the start of the second-half on July 18. As of July 17, the league still had yet to provide Yakult, Yokohama, and Nippon Ham with an explanation of the changes. The league could still decide to implement the new rules once the remaining three teams have been briefed. The earliest would be July 22.
[UPDATE 7/19 @ 7:51am]
Yakult, Yokohama, and Nippon Ham were briefed on July 18, however, a number of player chairmen were not convinced about introducing changes mid-season. There were also mixed feelings about the actual changes.
[UPDATE 7/20 @ 8:25am]
Eleven player chairman have indicated they understand the NPBs proposal to improve the collision rules after explanatory meetings with their respective teams. The Rakuten player chairman is not satisfied and their concerns will be brought to the attention of the NPB. The players associations is also planning to give individual players an opportunity to voice their concerns.
Source: Sports Hochi 7/20/2016