At a live event today, VMware CEO Paul Maritz unveiled VMware vSphere® 5 and a comprehensive suite of cloud infrastructure technologies built to help customers transform IT to drive greater efficiency of existing investments and improve operational agility.
See the official announce: http://www.vmware.com/company/news/releases/vmw-cloud-infrastructure-071211.html
Also other products has been announced: VMware vShield 5, VMware vCenter Site Recovery Manager 5, VMware vCloud Director 1.5 and VMware vCenter Server Heartbeat 6.4 (sound strange but no news about VMware View 5).
For more information on VMware vSphere 5 licensing, read the vSphere 5 Licensing, Pricing & Packaging whitepaper.
Note that the announce does not mean the product release… this will probably occour before the end of August.