An advert on a Japanese website has stated that the PlayStation 5 is scheduled for release in October 2020. The job listing is for a role within SIE's materials department and would see the successful applicant undoubtedly working with the PS5. However, Sony has stated that the published launch date is a mistake.
https://www.notebookcheck.net/PS5-scheduled-for-release-in-October-according-to-job-listing-but-Sony-says-it-s-an-error.464885.0.html