I doubt any concessions need to be made in Japan to Nintendo. Sony have zero software presence in that market. They need only point out the top 10 selling games of every yearOf course they would be allowed. People tend to forget that Microsoft bought two big publishers in a row! Zenimax was already big (many studios in Europe and North America, one in Japan) and now they are possibly getting the biggest pub on earth! Market share is only temporary which can always change within time. This is also a question of assets and IPs. I think if Sony would announce this year Square Enix, they would get little to no resistance. Nintendo has already a tremendously high market share and Xbox isn’t even affected by this. Sony would just need to present how low the numbers for Japanese games on Xbox were. I also believe if they would go after Capcom in a couple of years they would getting it approved, they would probably only need to make the concessions that Monster Hunter would be available for Nintendo systems. Two Japanese pubs for Sony would realistic, to get them approved.
Japan’s top 100 best-selling games of 2022
- Pokémon Scarlet/Violet (Switch) – 4,338,931
- Splatoon 3 (Switch) – 3,687,814
- Pokemon Legends: Arceus (Switch) – 2,314,806
- Kirby and the Forgotten Land (Switch) – 969,047
- Nintendo Switch Sports (Switch) – 887,722
- Mario Kart 8 Deluxe (Switch) – 742,018 in 2022 (lifetime sales total 5,014,375)
- Minecraft (Switch) – 548,415 (total 2,960,006)
- Mario Party Superstars (Switch) – 485,594 (total 1,114,132)
- Super Smash Bros. Ultimate (Switch) – 441,053 (total 5,065,191)
- Elden Ring (PS4) – 356,711