Most of the internationalization issues have been resolved in the current draft. We may add a mechanism that will allow multiple copies of an element to be returned in different languages with the appropriate language attributes. A number of syntax issues have been raised. Once we solve this problem, we still need to work on a DTD and resolve a number of minor issues. Major syntax changes are still possible at this point.
Questions remain about the use of the realm element.
It has been proposed that P3P provide syntax for excluding sub-directories from realms. It has also been proposed that the realm element become a header rather than part of the proposal or that it be removed altogether. It has been brought to our attention that some servers will not accept HTTP headers bigger than 4k. This may be a concern when the P3P data transfer mechanism is used to return data. We may modify the header syntax to a more compact syntax to address this problem.