Maybe. After watching those Senate Estimate hearings noone asks penetrating questions and none of them have enough knowledge of the subject to nail people. The senators need more expert help at the table to put people under constant pressure. Mind you if it really got to court that would be a different story as there will be council assisting who apply the blow torch if the defendant makes a wrong step.
In reality it would take someone in QF to grow a conscience and/or a spine to come out and testify for any serious blows to be laid on Joyce. I think this will probably just roll on and nothing further will be had of it unless we get a witness or someone stuffs up, and something gets into the media that shouldn't.