Like it or not, I'd be surprised if Duran gets added to the 40 man roster until at a minimum, the Super Two deadline passes. Not sure when this is, but Duran would need at least 86 days of service time, which would put his call up just after July 10, and has to be in the top 22% for total service of all eligible players.
So if the Sox are as high on Duran as many of you are, unless there is a glut of upcoming rookies, I would suspect we wait at least 5 more weeks. And given how little actual quality minor league time he has above A Ball, it's hard to argue that is service time manipulation...