It would also be important to consider the overhead of migrating any such organ definition files to version 2. The processs is quite involved since the formats are so completely different, and there is no automatic migration. I don't think any time saving would be made by such an automatic migration in the long run - so much human intervention would be required that I think it is actually much easier and better to migrate them by hand. There are a lot complex parameters to set for new features such as the wind model, which could not be automated sensibly.
I will be working with all sample set producers to ensure that all available sample sets are migrated, but I'm afraid I will only be able to offer limited help with users' modified organ files.
Martin.