The PS4 version of World of Tanks may very well come in the spring of 2016.
The Beta testing will take place around November/December and they will see what happens after that, the release is planned for next year.
WoT PS4 will have some exclusive content like maps and some other things they are not ready to talk about yet (ahem...ok. In a game that only has tanks as vehicles and maps to bring as "new content" I wonder what it may be. But lets not be mean and imagine some new mode perhaps. *insert donger face here*).
Other information of interest:
- There are no comments about World of Tanks being available for PS3 as well.
- The Developers don't exclude the idea of having other Wargaming games on consoles.