Return Rendered nodes with the node service

Our development team is using trac to track software development but we keep a lot of information within Drupal. I created a custom service that simply sends out rendered nodes to my XMLRPC client within Trac. I'd like to contribute the code but want to know if it makes more sense to add an optional flag to the existing node.load call, or to create a new RPC call, something like node.loadRendered, or as a separate module.

Is this useful, and which methodology would work better?