From the looks of things, it seems that PS4 players and PS5 players might be able to play with each other when the system launches. 

Last month, we reported (via Wired) on the first official details regarding Sony’s next-gen gaming system. Aside from confirming the system’s architecture and that it would support PlayStation VR, Sony also confirmed that it would support backwards compatibility. 

At its recent Sony Investor Relations Day 2019, company representatives provided new context to that revelation. Specifically, Deputy President of Sony Interactive Entertainment John Kodera and President and CEO of Sony Interactive Entertainment Jim Ryan suggested that cross-play between the PlayStation 4 and Sony’s next-gen console would be possible. 

Of Sony’s increased emphasis on a seamless generation transition, Ryan said: 

Kodera followed by emphasizing the importance of bringing the PlayStation community together and bridging the gap between console generations. 

We see this, given the size of the community that we’ve been able to accumulate over all these years on PS4, as a really critical success factor for us; we think it’s really important.

It’s worth noting that neither of these statements completely confirms crossplay functionality will make it into the final next-gen product. It simply confirms its importance to Sony, and that the company is exploring it as a possibility at this time. 

However, let’s throw on our tinfoil hats and say the probability of this happening is significantly high.