C*+ is a pretty advanced language. It has been used for years and is still one of the industrial standards when it comes to Game Development. You can alter almost every aspect of the game, down to memory management. Also, there are a lot of C/C*+ Libraries that would most likely do what you want while otherwise impossible when using bindings.
As for new features, I am mainly pointing out 3rd party libraries and native control. You can use C++ to invoke Java and/or Objective-C commands, which is useful if your game implements native libraries such as ads, facebook, or game center.