The Star Wars Battlefront page on Xbox Store seems to have been recently updated and now shows the final size of the game download which comes to be just a little bit under 20GB.
The download size of the game, 19.39GB, however is only shown on the game page and not for each individual edition of the game. Some might feel that the download size is a bit too much given how it’s just a multiplayer game with no story campaign which essentially little to no cut-scenes is also supporting a resolution of just 720p, but given the visual quality from the beta, the size seems to be totally worth it.
There is no information as of yet regarding the size of the PS4 version of the game, but it would definitely be more than the Xbox One version.
Star Wars Battlefront is set to release on November 17th for PS4, Xbox One and PC. It was recently revealed that the Open Beta for the game was played by over 9 million people across all three platforms.