Question: is there a sequel to the enders game

Answer: Yes, A prequel to Speaker for the Dead named Ender in Exile was released in November 2008. It involves Ender's journey to the first colony (and thus serves as a replacement for the last chapter of Ender's Game and as a sequel to the remainder of the novel), as well as his meeting a character from the parallel Shadow saga (effectively wrapping up a remaining plotline in the parallel series).