We are looking at change the wsdl address value dynaimcally to user request address.
I just tried jboss-as-7.0.1.Final and it looks this already works. You can simply configure the wsdl-host value with "jbossws.undefined.host":
<subsystem xmlns="urn:jboss:domain:webservices:1.0" xmlns:javaee="http://java.sun.com/xml/ns/javaee" xmlns:jaxwsconfig="urn:jboss:jbossws-jaxws-config:4.0">
<wsdl-host>jbossws.undefined.host</wsdl-host>
<modify-wsdl-address>true</modify-wsdl-address>
and this will have the wsdl host have the same value with the request address.