Damn those people who takes Xena's name from eternity. Yet still, the names given to the planet and her moon aren't far from Xena anyway. The planet's official name is Eris, named to the Greek goddess of chaos. The name is chosen because the planet did cause a chaos until Pluto's status was downgraded. The moon is named Dysnomia, after Eris's daughter, known as the spirit of LAWLESSNESS. Coincidental??? I don't think so.
No matter what others call her, for me the dwarf planet will still be Xena. Besides, I bet the planet will be known as the planet which was once named Xena.