Thanks!
This confirms that they have not touched the software.
To me that makes a lot of sense, in terms of getting to a point where they can sell new meters.
Updating the outboard side would be a major undertaking on its own, involving a fair bit of software archaeology, but it is not impossible.
Commercially it would be stupid to have that delay the RoHS hardware roll-out.
However, I think they will have to deal with it eventually, and therefore I would not be surprised if we see a 'B' upgrade, which only changes the outboard card.
Looking at it, I think you could fit both a USB and Ethernet connector in the GPIB cutout on the backside, thus making the A->B upgrade available to all ages of meters.
(And if they havn't found anybody to do it yet, my company does stuff like that for money :-)