I am pretty sure 3D metallic sinter machines will replace many (not all) CNC mills/turns (incl 5 axis) machines in the industry in a few years. Some car manufacturers of expensive sport cars already use them to create whole parts of the cars engine and its exhaust system. It allows them to print them complex metallic parts including moving gears all in one step without any assembly or finishing step at all - something that would require multiple parts and many human work hours using CNC mills/turns.

Source: I have background in these field as well.