There is not even a 0.0000001% chance that his sentence will be reduced. The FBI want to make an example out of him. They want to scare other possible future dark market admins using his example. Accept it. Ross Ullbricht will remain imprisoned for the rest of his life, unless he manages to escape from the prison.
He is a very high level scumbag and he belongs in jail forever. Why would they reduce his sentence? They aren't making an example of him, he earned every day of confinement. He paid to kill people. He set up the largest drug trade market ever. I am surprised he didn't get the death penalty. Why did they go easy on him?