it seems that no more vSAN licenses included in Horizon 8, this significantly changes project and budget considerations.
“vSAN Advanced CCU licenses is no longer a part of Horizon Bundles (Horizon Advance, Horizon Enterprise, Horizon Universal License, Workspace ONE Enterprise for VDI). Existing Horizon customers with active support will be grandfathered in and can continue to use vSAN Advanced CCU licenses. Horizon universal license customers are grandfathered in and can continue to use vSAN Advanced CCU licenses until the end of term. More information on vSAN fulfilment after Horizon 8 release can be found in this KB Article.”