UNRELEASED GAME - CANCELLED
This game was officially cancelled or abandoned and is no longer in development. An unfinished version(s) of it may or may not have been made available to the public.
In June 2008, Kotaku allegedly received information from a former LucasArts employee that Star Wars: Battlefront III was in the creation process. On October 2, Activision Blizzard filed a classification with the Australian Office of Film and Literature Classification listing Star Wars: Battlefront III for the Nintendo DS with a PG rating (E10+ equivalent) for mild animated violence.
However, that same month, Free Radical Design announced that they lost the rights to develop Star Wars: Battlefront III; the game at that point had been in development for two years. Several years later, Free Radical Design co-founder Steve Ellis said Battlefront III was "pretty much done" in 2008, but that it was effectively canned when LucasArts could not commit to "spend big" on marketing it.
Source: Wikipedia, "[en.wikipedia.org/wiki/Star_Wars%3A_Battlefront%23Star_Wars%3A_Battlefront_III Star Wars: Battlefront]", available under the CC-BY-SA License.