Active Directory SSO through a reverse proxy's REMOTE_USER

I did some research and I created a fork using this idea: https://github.com/mmuszkow/platform
It's just a proof-of-concept, but clearly shows that this is possible. We are using apache + mod_auth_mellon to inject the headers, the configuration looks as follow: https://github.com/mmuszkow/platform/tree/master/httpd-conf
We are using similar setup (mellon, shibboleth in the past) for many of our services. Do you think that such change (when polished) has any chances of reaching the master branch?