Given that the XML format used to describe one, or many Mii™ characters makes a call out to the trademarked Mii™, a new XML format will need to be established for My Avatar Editor. As with the logo, I'll have to figure something out for this one. The problem here becomes a little more complicated as extensions to the Mii™ character format are added.
This probably won't be an immediate change. Much of what will be done at first is just restyling the interface so that it doesn't look so much like the Wii™ Mii™ channel.