Hyrule Warriors will be launched with some free content for everyone to download and enjoy.
Nintendo has officially confirmed that Hyrule Warriors will have free DLC available at launch offering a new mode, weapon and the option to select music. In addition to this, Nintendo have stated that they will support the game in the long run with much more content planned down the line, so the game certainly won't lack downloadable content.
We have no specific details on this free downloadable content or any information as to what future DLC may contain, but in speculation we would presume that there will be more maps, characters, weapons and game modes for players to enjoy in the future.
The game is going to release on September 19th in Europe and UK, September 20th in Australia, and September 26th in North America.