Just a random thought that crossed my mind.
The content release schedule of the classics is normally being faster than retail (apparently, i could be wrong), which leads me to think that Classic will eventually and naturally catch up to Retail and then Fresh reset back to vanilla again.
If this does indeed happen, would it be possible (Or viable) to do some sort of ‘transfer’ or clone our characters from this Classic that caught up to Retail to the actual Retail servers, bringing the character along with achievements, items, etc.?