User blog comment:Jrp04f/Final episode -- who is the EU representative girl?/@comment-123.2.97.10-20110704114808

As you say, she's probably representing the EU. Thus far, there is nothing known about her. She was surely added to avoid the sheer hypocrisy that would be evident if the EU continued being as completely nonexistent as they were in canon. There may be some Japanese material about her, but nothing that I've heard of.