It's slowly dying, you can look at server list websites and planet minecraft on alexa.com. Their ranks are slowly falling while "fort nite" is rising. First of all It began to die starting with wolverness killing off bukkit, which destabilized the whole server hosting community, then the 1.9 combat update, then 1.11 fully ruining pvp. Overall the game is becoming worse with each update, it was updated well until 1.9, but I doubt Microsoft would care about it anymore.