Last minute suggestions:
I would like to see some real Player Vs Player action : This could be diced out. Perhaps random matching, perhaps you choose and then diced attacks.
You could also introduce some random Storytelling elements for a single player like....suddenly @aussieninja finds an old bottle on the floor - Will he take a sip? (Could be elixir/could be poison) Or for a
Same for groups: The wizards find a barely readable scroll on the floor covered in dust...should they read it? (Could be a wicked new spell/could be a nasty curse)
I would like to see more teamwork/teamplay elements too...
:)
Some really great ideas!! cheers