Yes, Sony will introduce more powerful PS4
As VR is considered as the future, companies are trying to be the part of this technology. You know that Sony has a VR for PS4, and you may also know that those PS4 VR games actually look like Ps3 games. It is because of PS4’s hardware which is not able to run 4K games or VR games. That is why Sony decided to introduce PS4.5 or with its new name Playstation Neo. Even though there is no official information, there are leaks and rumors from different sources.
According to the rumors, PS4 Neo will have more powerful hardware that would allow the console to run 4K games without any lag. Also, it will be able to handle VR games with better graphics.
The rumored release date is summer.