If you follow the aoharaido tumblr, there doesn't seem to be any official news about it ending. Io Sakisaka just did an intense interview about the latest arc two weeks ago, and the tone of everything seems like it's still very much ongoing:
http://lamunetty.tumblr.com/post/98375406318/translation-intervie w-with-ao-haru-ride-s-io

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I wish our profiles had a description section.