This goes back around to why Sony won't play ball with Microsoft: Sony has its own online service with a trophy system, yet Microsoft demands they bend to their system despite Sony being the Market leader by quite a sizeable margin. I would love for Sony and Microsoft to play nice, but not if Microsoft intends to cuckold the PSN in the process.
I can see why Sony doesn't allow minecraft. You would have to login to xbox live, and that would be pretty wired to do on PS4.
The don't have a single valid excuse for no crossplay on fortnite or rocket league tho. This if very benefitary for mp game devs who will get a combined and more healthier population of players, with less wait times, better matchmaking, etc, and also for people who have friends with the different consoles from them.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.