Unfortunately, this will be used to demonize bitcoin. Then again, before bitcoin, cold hard cash was demonized the same way. Everyone shifts their sights.
But, keep in mind, as many bad people that use the tor network are just as many good, and gray area people. Most governments use and rely upon the tor network anyhow. The tor network will not just disappear luckily. However, thesilkroad, cool it's gone, but what i've found reading reviews of hitman services (creepy to read), is that more will pop up as simple as an add popping up in a newspaper. People won't take long to find alternatives, especially when easily found on the hidden wiki. So, does the hidden wiki get taken down next?