If none of you know, Clash of Heroes is also being released on Steam bundled with a free DLC that adds 4 new bosses that can be used in multiplayer. While the PC is getting this for free, we will probably have to pay. The DLC was released on the PS3 for $3. This is not that much, and apparently it comes with a balancing of the multiplayer as well. Capybara Games confirmed on Twitter
(september 13th). Hopefully this means more DLC to come now that they are done working on the Steam release. Plus many people will pick this up during the sale next week, so it is the perfect time for more DLC.
EDIT: The Steam DLC was free with pre-purchase, it now costs $3. So it is safe to safe we will have to pay for it.