Nagra 2/3

Hi.
I currently have the box-t.
Everything has been fixed after the latest scare at Christmas. However, I now hear lots of talk about chor*s/chor*s mmds planning on introducing nagra 3. This would involve giving everyone a new sattelite anntannae and box. I am not entirely sure about what will happen to mmds viewers if these changes are introduced. There is talk of nagra 2 being introduced to mmds viewers, as this would be much cheaper and would not involve the same drastic measures as introducing nagra 3. I am wondering does the box-t hold the capacity for nagra 2? If not, would updates be sufficient?
If a full scale nagra 3 was also introduced to mmds viewers, would a new box be neccessary?
Cheers.