New Horizons
Uh...nope. Nothing new here. Currently listed (at least until about 2014) as NASA's most boring operational space probe.
From their website (boldface mine):
Interplanetary Cruise: activities during the approximately 8-year cruise to Pluto include annual spacecraft and instrument checkouts, trajectory corrections, instrument calibrations and Pluto encounter rehearsals.
Like driving I-80 back through Nevada. But hey, Reno and Tahoe are at the other end, right?

