I'd say it's safe to assume all 1.7 million documents, including the secrets his bot scraped that Snowden didn't want released are in the hands of the Chinese MSS already. I find it hard to believe they didn't set up shop beside his room in that HK hotel to use state intel agency methods to grab his keys, nor do I believe that his hasty destruction of his standard laptop wear-levelling flash drives in the airport before departure to Moscow actually destroyed all the data.

I bet there's a room stacked to the ceiling in printed US secret military documents in Beijing that they trade to Russia for cheap oil+gas imports. I realize Snowden never wanted that to happen but there's a reason why state's have strict methods to store and transport top secret data and they don't include using questionable XTS container software and staying in a HK hotel with the entire secret US archive stored on a commercial device.