Solved
5 man squads
During the pre alpha gameplay I saw that there were 4 people to a squad. I'm hoping they bring back 5 to a squad like BF1 so I can play with all my friends. I don't know why they down sized it to 4 in BF1
Yep, 4 man squads confirmed. A couple reasons for them choosing 4 man squads come to mind. There's four classes so each member of the squad can be a different class. Assault, support, engineer, and sniper.
The second reason I can think of is that 4 man squads divides evenly into 128 players. I don't know if these are the reasons DICE chose to go with 4 man squads, but it's my best guess as to why.
