Big Ant are totally welcome to build an Aussie Rules game much like they did with Donald Bradman Cricket. If they think they can build a far better game than what Wicked Witch are putting up, there's nothing stopping them from putting their names out there. Sure, it might take a sequel to get a bigger audience, but the option is there. No point in acting like Big Ant are unable to create an Aussie Rules game, they simply can't use the AFL license.