Of all the rumors, the Sony PS5 game console will be released next year, and it can be announced at all in the current year. Apparently, the new prefix will please users compatibility with the games for the PS4.
As you know, the current generation of Sony consoles is not compatible with games for the PS3 due to a very large difference in the architecture of the processor. And the next generation should get, like the current, AMD hybrid processor, that is, no architectural changes will be (all the same x86).
One of the developers of the Digital Foundry studio said that there is no doubt that the PlayStation 5 will be compatible with games for the PS4. Of course, this is not yet an official Sony statement, but it is not the opinion of the average user.
In addition, days on the Web there were rumors that some studios have already received kits for developers of the PS5, which again speak in favor of a quick announcement.