The developers of Wildstar recently revealed that they will be involving the community in creating addons for the game. In fact, Carbine will be providing players with the same tools they use to build and test interfaces, including a full Addon Development Studio.
Any custom artwork or sounds can also be bundled into addons using the tool provided by Carbine. Carbine’s own addons will be available for everyone so that players who are interested in developing their own addons can get started faster.
All of WildStar’s UI components are addons that are built with the Lua scripting language. Lua is mainly known as the addon language for World of Warcraft.
To find out more about the game, visit the official site here.