As a relevant update -- "During a planning sprint in Seattle, Sage and LiAnna laid the foundation for digital infrastructure improvements. Supported by an additional $300K grant provided by the Stanton Foundation, Wiki Ed will transform its Assignment Design Wizard and Dashboard into a fully functional course management system. This will be independent of the EducationProgram MediaWiki extension that we’ve used for course pages until now, and will let us move past current limitations of Wikipedia’s course pages."
http://wikiedu.org/blog/2015/03/23/2-2015-mr/
This is a real world example of an affiliate organization taking what's currently a integrated but poorly maintained MediaWiki extension and committing to re-thinking it as a stand-alone tool that uses our APIs. I'd love to see something similar happen with GWT.
Erik