I was the guy on the AudioKarma site who started the project with Graz Keet of Apogee (I have RSIIb's). Currently, he is examining various EMITs and EMIMs which several of us at AK have sent to him (he is in Australia). He seems excited to make new diaphragms for us and should soon be making prototypes for testing. He feels he can improve both the sound quality and reliability of the diaphragms using more modern materials and CNC machining.
If you are interested in contacting him, his email is:
info@apogeeribbons.com
He intends to make all of the versions that are in demand, so if you have a particular type of EMIT or EMIM you need, you may want to contact him and let him know.