A new way to experience KotOR II, The Sith Lords Massive Improvement Mod will reskin nearly the entire game, including characters, modules, dark side transitions, and 8000 pixel wide skyboxes. In addition, new visual effects, lightsaber hilts, menus, sound effects, and HUD are planned. Nearly every texture will be resized at least twice its original size, and most commoners will now have unique appearances. Major new details about the coming coming within the next few weeks.
Short update on the mod: after quite a while of inactivity, work has commenced once again.
Both Sion and the Trayus Core are WIPs.