As Eric Sloof blogged recently, the Design Course will be available soon. I’ve already received the course material a couple of weeks ago to prepare for the VCDX design exam. This course is targeted at architects and engineers developing designs. According to the datasheet the VI3 Install And Configure course is a prerequisite. Those who are preparing for VCDX should definitely look into the blueprint for this exam and I can also heavily recommend the VI3 Deploy, Secure and Analyze course.

Other documents that I can recommend for the VCDX certification track preparation:

Be sure to read them thoroughly and take your time to prepare for the exams(Enterprise & Design)!