Do you mean that someone in the space ship could, without extending their own lifespan beyond what is already expected, use the space ship to "travel" to Earth's distant future?
Kip Thorne said it's theoretically possible. One end of the wormhole is on earth, the other is on the spaceship. Then you fly the spaceship and hop into the wormhole and arrive into the future on Earth.
You don't even need the wormhole. You just accelerate away to relativistic speeds then turn around and come back. It doesn't matter which direction you're going, just that you're going _fast_.
