A prototype version of Battlefront from July 2003 has been uncovered, and it's quite vastly different from the final game - it has Hoth and Geonosis only, and there are only 3 classes (Assault, Repair, Demolition). The maps themselves are also vastly different from the final version - those who have been around long enough will recognise Geonosis as psych0fred posted it to SecretSociety.
https://hiddenpalace.org/Star_Wars_Battlefront_(Jul_23,_2003_prototype)
Here's Dark_Phantom playing it:
Honestly, if it were available for android, I'd be down to play it :P
Very interesting! As someone who is always eager to find ways to incorporate old or cut content into my future mods, I'll be very eager to see if any of the assets can be extracted and released from this.