https://www.bbc.co.uk/news/newsbeat-47953213#

Quoted from BBC news website -

"Sony has finally released the first details about its next PlayStation console.
Gamers have been waiting patiently to find out any information about PS4's replacement, but until now details have been kept firmly under wraps.
Now Sony's system architect Mark Cerny has released information about what the "next-gen console" will look like.
In an interview with Wired, he reveals it will be much faster, more powerful and include improved audio.

But don't expect to be able to buy one in 2019 - you'll have to wait until at least next year to see it on shelves."