Make it a REAL love letter to fans - offline mode
I think Dice made a lot of players very excited with this Portal mode. It is almost a real love letter to fans. Why I said almost? Because there is not offline mode to ensure legacy of Battlefield series to stay. So when Dice/EA will decide, they will simply turn off servers and we wont be able to play game anymore.
There is opportunity for you to implement a true offline mode with bots (it can even be without progression if that is the problem) like "Instant action" in Star Wars Battlefront 2 (2017) and you will make thousands of players happy. Make it a real love letter to fans, not this "always online" nonsense - don't get me wrong, I know Battlefield is primary multiplayer FPS, but adding an offline mode will make this title probably the best FPS in a decade 🙂