Usually the owners of JT will eliminate the reverted (solid green) branches to encourage the variegated ones to grow.
Selling the reverted ones on ebay as variegated would be considered not fair sale, since reverted leaves have very little to no value and shouldn't be sold as JT.
There isn't, yet, any grower who has gotten variegated leaves out of reverted JT that we know of. Not yet anyway.
On the other hand, the fruit on reverted is as delicious as on variegated.