Just now... China has declared a halt to Bitcoins exchange and operations by October... The price of Bitcoins has partially drop due to the news... However, if we can equal the population of Bitcoins user in China and invite a lot of investors... I think Bitcoin will still survive.... Hope so....
Investment assets doesn't work this way. It is never like if you fill the void left by Chinese investors, you can save the price from dropping. It depends upon buying and selling activity. If someone sells Bitcoin at lower price and many other join, then price will go down and vice versa. Unless you are directly giving private keys of Chinese bitcoin holders to new investors, there is no way you can save the price from dropping during major selling period that usually happens with the spread of negative news. However, the price can always recover.