The future of 3D printing can be predicted, but if the predictions will be accurate in the future is a different story. There are some additive manufacturing advocates that have predicted that the technology that has been developed will be changing the commerce nature.
One of the official main reasons is that the end user will have the ability to be more independently productive, which would decrease their expenses in trade, where they are buying products from other corporations and individuals. The technology will make it possible for them to be able to produce what they need, and prepare it for manufacturing process. In different industries and branches, the technology will be very useful.
The 3D printers will be maintaining the capabilities of outputting in colors and different materials that already exist. This will be gradually improved, and it will get to the point where products will easily be outputted. The effects it has on energy usage, reducing waste, customizing (since it is a project-to-project printer), its availability to produce, and other things that will be produce-able from the product. The future also include it changing the current manufacturing world to the better.
The future is solid, because it will take technology to a whole new level, and many people, corporations, industries and governments will possibly find it productive for its technology.