The planet Ashas Ree, an old Sith world, was first mentioned in the "Tales of the Jedi Companion", a role playing game source book first published by West End Games back in 1996.
Kel and Eila sport new outfits. Since they are no longer in hiding, the orphaned brother and sister can mingle with the rest of the inhabitants and secure new clothes, food, and supplies.
The symbol engraved in the Jedi temple is a snake/fish based off of the yin yang symbol. The snake represents the dark side of the Force, and the fish the light side.