Phoenix, an even more badass version of the current Mars rovers Spirit and Opportunity, will hit the Martian north pole. (Sadly, it can't look for the dead Polar Lander, because that rover was headed for the South Pole.) If all goes as planned, it will immediately dig into the icy tundra and take samples to see what the deal is with all that ice. Could it be turned into potable water for future colonists?
Sorry, the Phoenix is not a "more badass" version of the Mars Exploration Rovers. It's not even a rover.