The SIE/MLB renegotiation was announced December 2019 and to my knowledge we don't really know what, if anything, may have been mandated by MLB and what SIE may have wanted to do. Do you have a particular insight into this subject to say there was a mandate by MLB? We know that SIE's been fine to port their own games over to competing consoles in instances where it makes sense, such as LEGO Horizon and Helldivers 2. Based on that, I wouldn't be surprised if SIE was also gung-ho to get MLB on Switch and Xbox as that was their most popular live service game at the time and they were just formulating plans to kick off their live service/third party initiative. I know SIE hasn't been publishing those MLB games on the other platforms to date, but I wouldn't be surprised if that changes for MLB26 onwards. Back then when those contracts were negotiated, SIE didn't really have an off-console publishing arm set up, but they do now. For example, Death Stranding 1 on PC was published by 505, but Death Stranding 2 on PC is expected to be published by SIE. SIE's publishing this mobile MLB game, so I wouldn't be surprised if they begin publishing the console variants too. I have theorized that's one reason they've held back on a PC port, to allow the publishing rights to revert back to SIE so they can make bank and not have to split a larger share with MLB.