Do you think we'll see Apple-style court battles that will end up in the PS6 getting 3rd party storefronts given the news?
Can't really see this going any other way in a few years. Sony will de facto create a complete monopoly over how games can be sold on the PS6, given they don't even provide game keys to be sold for resellers (like Xbox or Steam does). Apple was in a similar situation, given they only supported the app store on their devices, but EU mandated they have to support 3rd party storefronts, and they ended up doing that, although only on European devices afaik. There is the argument that the consoles are sold at a loss and this is a way to recoup that, but... We had news just a few days ago that they're not going to subsidize the new console too much.