I know this might seem like a silly question to some, but I do have a reason for asking. Short version, as a gamer for several decades, I've learned the dangers of assuming things about games. Now, the question.

I notice that, in the demo, the game uses all fictional players. Understandable.

If I buy the game, do I get the REAL rosters with the REAL players, as I did in DDSPB 2017?

No, real players are not part of the game although there are mods you can download for either the 2018 or the new 2019 version