Battlefield at least makes more sense than the other games rumored to have BR mode. I've heard Battlefield, Call of Duty, RDR2, Dying Light (only 6 player though), and I'm sure a few others that I'm forgetting. Battlefield at least already supports large maps and large player counts.
As soon as a competent developer can do what PUBG is doing, but without the bugs and poor gunplay, PUBG is dead. I enjoy the game and I hate to see it die off, but it's success is based on a serious lack of competition. It's exactly what happened to DayZ when H1Z1 came out, and H1Z1 when PUBG came out. The fanbase moves to the newer, better playing game. At least with Fortnite it's different enough that it and PUBG can coexist. I know a lot of people are already tired of hearing BR rumors for so many games, but I'm honestly excited about the possibility of getting one from a more competent developer. Everything other than Fortnite has been smaller devs and indie teams trying to build something on a small budget.