I think you understand something wrong here. They are not going to close all exchanges, they just closed BTC-E.
Let me tell you I am in this since a long time, and when BTC-E started, it was very good, but as soon they got big amounts of coins and money, they started to disappear. You can check it on bitcointalk, if you read old post, you will see what i mean!
I dont think they will close down all the crypto exchanges, since there are regulated ones.