Add a addWatcher( RemoteUser ) and / or addWatcher( RemoteUser[] ) RPC / SOAP method

Could an additional method addWatcher( RemoteUser ) or addWatcher( RemoteUser[] ) be added to the SOAP RPC interface?

A little bit of background on the use case:
Our end users submit issues to Jira via a webform (so they don't have to deal with the complexity of Jira). We have a servlet which takes user input, evaluates a set of rules, decides who the issue should be assigned to (and to what components etc), and creates the issue in Jira via SOAP.

Our "ruleset" currently is a bunch of ugly "if/thens" but I am exploring using a something like Drools (http://www.drools.org) to evaluate a ruleset which is in an XML file.

Anyway, we want to add a rule to our servlet which says: If an issue has a priority > X, then add my supervisor as a watcher to the issue. Right now I'm unable to do this b/c there isn't (to my knowledge) an addWatcher() method for the IssueService. Is that something that could be added in the near future?

Thanks!