The Solidworks 2018 launch event will be on September 26, 2017. This release will have more enhancements for 3D printing and additive manufacturing. While we have to wait for the launch to get all the details this is what we can expect.
You can sign up for the launch event at...Solidworks 2018 Launch.
Work directly and easily with mesh data.
You can now integrate meshes into your design and assemblies. Convert mesh data into native SOLIDWORKS surfaces. Watch the video for more details.
Design for additive manufacturing DfAM
Solidworks has always provided tools to help design parts for subtractive manufacturing. This release is the start of having realizing that parts can be designed for additive manufacturing that cannot be produced by conventional manufacturing method. This release includes "Topology Optimization" that can be applied to DfAM.
Other key enhancements
Free Hand Sketching
Enhanced 3D CAD Interoperability