The BPEL4People and WS-HumanTask specs are headed to OASIS, resulting in a new BPEL4People Technical Committee (TC) - expect to see an announcement and call for participation soon. The TC will focus on defining human interactions (“human tasks”) as part of a WS-BPEL process, enabling these definitions to be exposed as web services.
Note that BPEL4People is not a new version of WS-BPEL. BPEL4People extends the WS-BPEL spec using WS-HumanTask. You can review either of these specs in their current form here: