Uranus is feeling left out :-(
Pluto will be visited in 2015.
Neptune MAY have a space craft sent to it in 2016 (arriving in 2030).
Saturn is being orbited by the Cassini spacecraft....
and then there's poor Uranus. Last visited in 1986, and no plans for any other visits :-( I feel bad for it.
Almost as bad as I felt for Pluto after it's demotion.