I think its inevitable Sony will purchase a publisher. We even got Shinobi hinting at Sony buying Capcom lol.
In the Variety interview, the CEO of Sony stated they were buyers not sellers, and will be shopping for IP. There's no other entertainment sector where they can get IP outside of gaming. The real question is, who has a large back catalog of IP that can be adapted into film or television, that also have popular live service titles? I think Capcom and Ubisoft fit the bill.







