According to BlooLoop, Six Flags has announced that a 4th park will be part of the Nanjing complex to be called Six Flags Kids World. The Kids World section will open in the first phase of the project, expected to open in 2021 and is expected to feature attractions developed for "younger thrill-seekers" along with scaled down versions of some of the chain's bigger rides. There will also be some education based entertainment involving math and science as well as physical fitness.
The other three Six Flags parks in Nanjing will be a regular Six Flags theme park, a Six Flags branded waterpark and something new called "Six Flags Adventure Park". As previously mentioned, this new concept will feature attractions like rock climbing and ziplines along with whitewater rafting and motocross bike races.