The problem is not in generation new addresses, the problem is transferring bitcoins from existing addresses to any other. This is the point of possible control.
This is the joke of the century, if you are not able to transact to new address then it means the network is dead and dusted. How do you think it will be proposed, the entire world will come out and control the miners and allow which coins to move and which coins will be stuck which is impossible in any aspect of imagination 
.If the government wanted to kill the network they could have done that when it started exploding, regulations is coming but that does not mean that the government will be controlling the entire network.
It is not joke at all. Just imagine situation in for example 10 years. Bitcoin is legal everywhere and miners are requlated by regional laws. Some international organization control miners in some way (for example in recommendation way). The purpose of this organization is to track "bad" addresses. At the same time some hacker have cracked some exchange and transferred it's bitcoins to their own address. Everybody knows this address and organization adds it to some "black list". If any miner include the transaction from this address he will ne responsible for it. As for me I see this scenario quite realistic.