I'm pretty convinced that this will remain the same. I do not own a PS (or xbox) myself but have read in a lot of threads during the Madden 21 season that MUT progress is locked to a specific gen / platform. Regarding transfering MUT progress across PS gens, I'd be very pessimistic. However, you will not be able to make use of the next-gen stats as they are announced to be only available on PS5. A new and enhanced playcalling system also comes with the next-gen version - something that is long overdue.I'm not exactly sure, but I'd guess it will be possible to play with your friends in the PS4 version if you own the PS5 version of the game.

In our preview of the game, the Madden development team showed off “deferred rendering and lighting, new weather details, and location-based audio”, all of which makes the game more realistic and immersive, while NFL Next-Gen Stats adds an entirely new level of realism to player movement and overall gameplay. Your game will download to your bright and shiny new PS5 and you’ll be set to check out everything that the next-gen version has to offer. The cost of the game should show as $0.00, so be sure that is the case before you click the download button.

Assuming you purchased the standard edition of the game, you’ll select the PS5 version of Madden 21. You’ll see a few different options, which will include the PS4 versions of Madden 20 and Madden 21, the Deluxe Edition of Madden 21, as well as packages for Madden Points. From there, head to the PlayStation Store and search for “Madden”. Log into the profile that you used to purchase Madden 21.

How to download ps4 madden on ps5