The dailydot.com website says they have access to the remaining wallets and put all the coins in the address linked to below.
https://blockchain.info/de/address/1FfmbHfnpaZjKFvyi1okTjJJusN455paPH
The Bitcoin address now known as DPR Seized Coins finished receiving the mass of cryptocurrency early this morning, an FBI official told Greenberg.
http://www.dailydot.com/crime/fbi-bitcoin-seized-28-million-silk-road-ulbricht/
Ha! I checked out the Blockchain.info link to the DPR address 1FfmbHfnpaZjKFvyi1okTjJJusN455paPH. It appears a few random people have sent small amounts of btc to that address for the hell of it. Most appear to be transfers of 0.001 btc.
Think I am going to send 0.001337 btc over just for the hell of it ^.^
It's also kind of funny that one can consider them as donations to the government
They have a nice little balance growing although it does make for a nice place to put a dedicated advertisement that targets Bitcoin users