The last remaining straggler has been caught up. Minecraft for PS4 will be joining the bedrock family, receiving not only all the same updates as the other versions but also introducing crossplay!
According to Mojang's Kelsey Howard on the Playstation Blog, the PlayStation 4 will be upgrading to Bedrock Edition on December 9, 2019.
For those who don't know. Minecraft: Bedrock Edition is the C++ developed recreation of Minecraft after Microsoft took over. It's since become the main version of Minecraft, having replaced the console and mobile versions of the game. This mode features a special content store as well as cross-play functionality. Which means yes, Minecraft on PlayStation 4 will soon support crossplay with people on Xbox, Nintendo Switch, Windows 10, and Mobile.
This also means that the PlayStation 4 version of the game will now be updated at the same pace as the rest of Minecraft Bedrock. Before now, the PS4 version had stopped development at version 1.9 (the current version everywhere else is 1.13) Players were concerned that the PS4 version was no longer going to be supported. Now we know why.
This update comes as a bit of a surprise given Sony's behavior toward crossplay. Sony and PlayStation have a history of being against allowing PS4 to support crossplay with Xbox or Nintendo. Many found this to be a greedy decision, believing that Sony wanted to maintain a sense of exclusivity. But they've been more open-minded as of late, allowing games like Fortnite and Rocket League to feature crossplay support.
If you own a copy of Minecraft for PlayStation 4, don't worry. You don't have to purchase a new copy or anything. When you go to update the game, you will automatically be granted a copy of Minecraft: Bedrock Edition for PS4.