It's A Necessity
Kenichiro Yoshida told the Financial Times that "it's necessary to have a next-generation hardware".

However, he declined to say whether the successor would be branded the PlayStation 5, the newspaper added.

The announcement comes at a time when Sony and other tech firms have been experimenting with streaming games from remote servers as an alternative.

The Japanese company allows titles on its cloud-based PlayStation Now service to be played via PCs, and at one time also provided access to some TVs and Blu-ray players.
https://www.bbc.com/news/technology-45801953
https://www.ft.com/content/25f9a068-...f-ee390057b8c9