VMware actually planned to retire the VMware Certified Advanced Professional (VCAP) certifications but based on the huge number of feedback received, VMware wanted to reverse the decision made and wanted to continue with the old certification path. You will earn the VCIX status once you pass both the VCAP-Deployment and VCAP-Design exam.
For vSphere6 the VCAP level will not be going away. You will be able to earn a VCAP6 Design and/or a VCAP6 Deployment certification when you pass the corresponding Design exam or Deployment exam (lab).
Refer the following link for more information.