You can still design for WS-BPEL 2.0 the following BPEL4WS 1.1 activities. Some of them are renamed in WS-BPEL 2.0 language:
For more information about these activities, see Working with BPEL4WS.
If you need to change target from BPEL4WS 1.1 to WS-BPEL 2.0, note that the top-level compensation handler is removed and the "variableAccessSerializable" extended attribute in scopes and top level processes is replaced with "isolated" extended attribute.