The community of regular players has dwindled over recent months, but thing will be sure to pick up again what with the announcement of BF1. Will you be getting it do you think?
There is a "roll call" and "AVF platoon" thread, but I would maybe just add anyone who has posted in the PS4 Battlefield forums over the last few months (most people have their PSN IDs in their signature). Say "I'm from AVForums" when you add them, and mostly they won't hesitate to add you to their friends list.
I'm trying to fit in a bit of time playing each night before BF1 is released - usually pretty late at night though tbh, but will add you just in case you're on at the same time. (Psn: Moomike1981)