Eurogamer: How exactly will the user interface change?
Hiromichi Tanaka: The version updates we're planning for this November and December are based on the current user interface, and focus on how to improve the current interface and the speed issue.
But when we come to next year's version updates, we're going to focus on the mouse side. For example, you can drag and drop your equipment and then have it on your character. Also, by right-clicking you can make a command to your character and react quickly. It'll be easier for the mouse users.
In the future, we're planning to open this up to the users so they can have add-ons, so they can improve it by themselves. That's the plan for the long term.