Perhaps we could call it “claimant roulette”, because really it will depend on whether he gets counsel in a timely fashion, because there will be no protection against removal. Once a negative decision comes down, if he's from a designated country he could be subject to immediate removal. He'll likely still be in detention, so the only way he can resist removal is by applying for a stay in the Federal Court, which means he has to have a lawyer who can bring the stay forward in a timely fashion.
We know these cases are going to get high priority. If the claimant can find a lawyer able to bring the stay forward, my sense is that the court will give very careful scrutiny, given the timeframes, but if he doesn't, he'll be removed. That's why many of us who look at this system believe that the potential for error is extremely high, and we fully expect that there will be many genuine refugees who will be deported as a result of it.