For the Embraer fleet, yes. There was only one contract FO, and they have been extended until the end of the summer 2015. With the extra aircraft coming in April, they need as many E190 people as they can get.
Not sure If there are any contract FO's on the 73. They tend to get pilots straight out of KLS school in Holland. They already come type rated and, more importantly, they are very cheap.