They didn't die yet, but according to many players, they are DEAD. However, this is not the case in my eyes. Mineplex's Network is NOT dying, Mineplex's PC server IS dying, but it is not dead. The reason for the Mineplex PC server is dying is because all of the changes, lag, and unoriginal games. I believe that it may increase slightly, but it won't yet.
I'm not actually sure about the Hive, I think it stayed the same.