Over on JF, folks were talking about fic archives, and the idea of 'future dating' the top entry came up. Perhaps loading the calendar into a future-dated entry floating at the top would keep the user info page neat and orderly?
New con suggestions could be made in the calendar post replies and added as we go.
(Also, if the calendar graphic is too large, just say the word. I will happily re-size it or edit it).