No you won't get disk. You game file will be automatically downloaded when it's release. Of course the game file will release before 24th September. I think you your game file will start downloading at least 3 days early.
1. Both person can play the game at the same time when game will release.
2. One person will have the champion edition content ( Pack, loan player etc) who bought the game and other person will only get the game without no additional content because…
1. Yes for trial you have to go to ea access hub.
2. Yes 10 hours.
3. Go to your library, then go "Purchased" option, you will find you pre ordered game with countdown time, then open 2 times you will find the countdown screen.