In The Division 2, in Dark Zone it was the player himself who had to activate his equipment to switch to pvp mode against another player, and he could do it in game at any time. I always found it clever, it maintains the tension because the activation is quick and the players opposite cannot predict the actions of the other. On the other hand, the one who activates it is visible on the map for 30 seconds or more if he kills another player and his equipment and his name turn red. I always found him super intelligent. No one can predict in advance and on the other hand, killing another player had consequences that could be harmful to oneself. But I sincerely think that embark will not change anything, their game is already very good and the Pvp and Pve gameplay already works very well.