There will be limited support in Xdoclet 1.2.2, which is due in a few days.
The RC1 already has it, but it looks like this was for wsee 1.0.
I just commited some changes to get a 1.1 compliant (more or less) webservices.xml.
You still need to write the wsdl file by hand or other means. Support for this won't make it into 1.2.2.