Azubuike24
A) Why would the owners agree to this? I certainly wouldn't send a pitcher I'm paying 15-20 million over 6-8 years to the mound for 2-3 more starts after likely pitching many extra innings in the playoffs.
B) Why would the players agree to this? With today's free agency demand, I certainly wouldn't have my players (or clients, in an agent's eyes) playing extra meaningless games. I say meaningless because their checks will be written from an MLB team, so what they do in this type of series wouldn't be beneficial to them getting paid.
C) Why would many fans care after their team wins the World Series? I know if my team just won the World Series, I could care less about watching them play this series. The ultimate goal was already achieved.
It would be a great idea if winning this replaced winning the current MLB championship in importance to the teams, players and fans. However, it won't. Therefore, it will become just an extra series that players will be forced to play in, many will find a way to not participate, and it will become a half-assed series that Japan will likely win and then try to sell themselves as equal to the MLB.
When the top, top notch players start going to Japan to play pro ball and their major leagues become equivalent to the MLB's in talent, then we can talk. You can say what you want about the World Baseball Classic being won by Japan, but we all know that's only the case because many of the other countries, many of whom have their elite players in the major leagues, don't put the best on the field. A fully-stocked Dominican Republic or United States team would win every WBC if they wanted to. The problem is, like the WBC, this would just be something nobody cares about. Don't waste people's time.
If they want to integrate Japanese baseball into the MLB, plan to put a team or two from over there in the majors at some point. I'm not saying right now is the right time, but that would be a more logical idea than a spectacle like this.