They will not be on the old JQ EBA but a different contract through an agency, employing for TJI, they will have no staff travel and have no guarantee of a job after the very short term contract is up. It is only to cover a gap in JQ domestic in the short term during the busy season. It is only domestic flying as well, please keep this in mind, with no minimum hours and you would be used last if they can't find a TJQ person to do the shift, very last minute and on call...
hope that sheds more light!