Are there any plans to make a sixth installment in the Heroes series?

Even with the War expansion, it's a prime example of something that didn't quite work out. The third installment was almost perfect in terms of style and balance, and I have a feeling that the developers are hesitant to develop a fourth part because it might turn out to be worse than the third. Right now, the third game is recognized worldwide, and any new additions will be met with resistance. Making a copy of it, but with improved graphics, isn't exactly a brilliant move. Although, I would gladly buy a remastered version of the third game with modern graphics and the original concept. And there's still a lot to improve in the fifth installment.