Tenth planet discovered

Three-quarters of a century after the discovery of Pluto, Cal Tech astronomers have discovered a tenth planet orbiting the sun. It has been given the wonderfully euphonious provisional name of 2003UB313, but will undoubtedly be dubbed something more in keeping with the names of its neighbours. Might such a name be found here?

By the way, can we assume that this new planet is not simply a redesignation of Sedna or Quaoar?