Russell Packer's announced return to the NRL is in serious doubt, with the immigration department yet to decide whether to cancel his visa and send him back to New Zealand.
St George Illawarra on Wednesday said it had signed the controversial former Kiwis Test prop to a two-year deal after getting the green light from the NRL.
Packer was sentenced to two years in jail in January 2014 after being found guilty of assault occasioning actual bodily harm, and was released in January this year.
He has been training full-time with the Dragons since August, the same time he began a university business degree.
But Immigration Minister Peter Dutton on Thursday revealed his department was still considering Packer's case, flagging the possibility he could be deported and unable to fulfil the new contract.