It's been confirmed PS5 will be backward compatible. https://twitter.com/GameSpot/status/1118167477203107846?s=19 I was worried we wouldn't be able to play The Sims 4 if we upgraded to the PS5 ...
If this is the case I hope they can optimise the game so it looks and performs better. I don't see why they wouldn't be able to have it identically match the pc in the next gen console.