Just done a games convention public demo and think the game is now finalised in terms of mechanisms and gameplay. See here for details: http://www.bgdf.com/node/12841
There are still design elements to revise, such as clearer card content and changing beastie and character units from standard flat cardboard pieces to be stand up versions, but I'm happy that the game works well and, more importantly, people like it and want to play it.
See the game blog for more details on the game: http://magic-maelstrom.blogspot.co.uk/
And the BGG entry, which is gradually getting expanded: http://boardgamegeek.com/boardgame/128991/magic-maelstrom