Axis is written to support the SOAP 1.1 specification. In the alpha release, it supports/implements almost all of the specification, and by the time the first release is done, the entire specification will be supported. The W3C XML Protocol working group is currently working on the next version of the SOAP specification (v1.2), and members of the Axis development team are constantly watching the group's activity to ensure that they will fully support that version of the specification.
As of now, the changes proposed to the SOAP specification are not so sweeping that they will dramatically change the definition of SOAP. The group's main focus is fixing any ambiguities or bugs in the v1.1 specification. However, a few changes will make a SOAP v1.2 message incompatible with a SOAP 1.1 message, so those interested in watching (or being involved in) the working group's activities should join its mailing list. The group's Web site is at http://www.w3.org/2000/xp/Group/.