This is under NDA currently and so you'll have to find out after the announcement and/or launch.
Check out Cloud Automation Services. VMware Cloud
Looks like the cat is officially out of the bag:
https://blogs.vmware.com/management/2019/08/whats-new-with-vmware-vrealize-automation-8-0.html
Hoping that the public can get some HOLs on this soon...
Just so you know, vRA 8 = CAS. They are one and the same. So vRA as we have known it up to this point with vRA 7 is effectively gone and replaced with CAS for on-premises (but renamed to vRA 8).
vRealize Automation 8 - What's New Overview - VMware Cloud Management
I asked for a trial on CAS earlier. What I was missing: network profiles and custom resources. Did I overlook something or these are not included anymore?
Yeah there's quite a bit more that's different between CAS and vRA.