The Orion Spacecraft has been touted as the shuttles 'replacement', but I'm not sure if that's an accurate description because Orion will have very different capabilities than the shuttles.
While the Orion may, because of its similarity to Apollo, seem a 'step back' from the shuttle, it incorporates vastly superior technology and capabilities and is the product of lessons learned from both the Shuttle and Apollo programs. One notable advance over the Apollo craft is a 'launch abort system' that encloses the crew module and can pull the module off the launcher and to safety in the event of an emergency during launch.
Like the Apollo craft, Orion would have the ability to leave Earth's orbit and is designed to perform missions to the moon, near-earth objects (such as asteroids or comets), and, eventually, Mars.
Orion is currently undergoing extensive testing and on-schedule for it's first unmanned mission in 2014.
You can learn more about Orion and track its progress at NASA's website http://www.nasa.gov/exploration/systems/mpcv/index.html and you can also find links there to follow them on Twitter, Facebook etc.