User blog comment:Adragon45/On new nations./@comment-2251154-20101115001640

Okay everyone... Sadly this was a false alarm. The sketches were NOT new countries, they were just people Himaruya knew who were of that particular ethnic origin.

More info here: http://community.livejournal.com/hetalia/9449745.html (you have to join the Hetalia community to see it though.)