As far as I know, we should now have card pages for all player-collectible cards and any noncollectible 'token' cards that players can use (current through 'The Fall of Argenport' as of this post). There's always the chance a few were missed by mistake, so add missing pages if you find them (or at least post about it here or on an active editor's wall) and feel free to clean up any errors.
So where do we go from here? Card pages' strategy sections can always be created and added to, but past that what would we like to see done on this wiki? Leave your ideas and feedback in the comments!