Mount Athos is digitizing their manuscripts. Their website reads,
“The Holy Community of Mount Athos, with commitment and respect to the millenary spiritual and cultural tradition of the Athonite Fathers, has decided to undertake new forms of action with the view to preserve and disseminate its cultural heritage. The main purpose of this effort is to exploit modern information and communication technologies by digitalizing, documenting and disseminating its cultural heritage.”
For the following Greek New Testament manuscripts on parchment, which have already been assigned a GA number, you can see new digital images on the recently published Mount Athos online repository:
Links to the Athos repository are already being added in the NT.VMR.
In addition, I've already found four "new" Greek New Testament manuscripts from Athos that will soon be added to the Liste: