Plutonium Devs/Staff already stated it's not going to happen and already been requested over 1000 times. Even though your the few that want this game to have a client for reasonable reasons. 90% of the community only want this for free. Plutonium doesn't need to explain themselves over and over when they are already busy maintaining 4 clients and remember they do this in their spare time. Most likely this post will be locked. Since they don't need to give an answer to you when it's been answered so many times in the past.
https://forum.plutonium.pw/search?term=bo3&in=titlesposts