Truly great idea, well executed. I would love to see this as a commercial release, as there is a great deal of room for expansion on an already great game-
1. Seperate ladders for 1000, 1500, 2500 point armies etc. This would add to the longevity.
2. 'No rules' matches as the current ladder. However, there are a number of tactics currently available that take the fun out of the game; for instance, a row of six mages with the staff that kills everything in front of it, or the infinitely spawning undead. When you see these setups, you know you will die in seconds. As a result, I believe that certain items should have a max number allowable in one army- this would also let you scale up army size/points without everything coming down to one or two 'cookie cutter' builds.
3. A variety of different battle fields could be added. These could totally change the outcome of a battle by blocking movement. LOS etc.
4. Campaign expansions- you could place limitations on unit choices etc to reflect the story and keep things challenging.
I'll stop there, because I could go on all night, I just see a lot of potential here. I don't think the current financial model will get the reward you deserve for this product; many people will just chose to use patience to save the money from ladder games etc rather than handing over cash. If this was polished, expanded and offered for Â£10-15, I would throw my money at you, as I think many others would!
BUGS- I'm sure you're aware of them, but...
Casting times are inconsistent from battle to battle. This only appears to be a problem with ladder games, not campaign.
The game often hangs after a ladder game and needs reloading.
Well done on a great game, please please please make more!