Maybe the ghost shader is the last thing on their priority list.. From all the core game mechanics to everything else gamers would want, from newer and more interesting events, bigger and better tanks/ spawn-able vehicles hopefully they are thinking about adding fully customizable mechs.. And possible living space.. They have to spend a lot of time planning things out. They have to figure out "what" to implement then "how to". The color and the look of the ghost might not be top priority. I think they should replace the ghost with a full war bot.. Which they can let the player design and customize much like their main character. Or maybe they can allow the ghost to carry a load-out. Like some kind of buff or player enhancing ability or its own support weaponry to fight along side the player.. We will have to wait to see what they come up with I guess..