Lumia 520 already went on pre-order in China with Cyan Lumia 520 selling out !! But Nokia China has now listed both China Mobile and China Unicom versions of Lumia 520 and 720 on its official website. It signals that we may see Lumia 520T and Lumia 720T arriving at China Mobile in very near future along with Lumia 720 which is scheduled to arrive in mid April.
Nokia China lists Lumia 520T and Lumia 720T with Lumia 720 and 520. Coming soon !!