The current set of upcoming upgrades joined during the summer of 2013. However if you joined now, you would be at the bottom of the seniority list and as such you would have to wait for the rest of the current fo's to upgrade first. And in the meantime you would probably be made redundant during the winter period. At least that's what happened to the fo's on the bottom of the seniority list during last two winters.
Good luck!