Gura reaching 4 million subs is undoubtably the peak of vtubing, no other vtuber will come close and Gura will probably never reach 5 million. Vtubing declines from this point, there is nothing more to reach for and each milestone thereafter becomes less obtainable and less extravagant. The only thing EN has going for it now, is officially getting their 3D which god knows when the fuck that is going to happen.