Is it possible to make the Wysiwyg module use the CKEditor's CDN for delivering the editor to the browser client?
If all you're using the wysiwyg editor is for ckeditor, you can use the ckeditor module instead.
This module will allow Drupal to replace textarea fields with the CKEditor - a visual HTML editor, usually called a WYSIWYG editor. This HTML text editor brings many of the powerful WYSIWYG editing functions of known desktop editors like Word to the web. It's very fast and doesn't require any kind of installation on the client computer.
you can tell ckeditor to use the CDN in the Advanced settings of the Global Profile: