HOI5?

If once every single nation in the game got a focus tree, once every single region and continent has something worthwhile to keep you playing in them, once ISP brings back the rat, and once Antarctica gets added into the game, do you think paradox would begin development on a HOI5? And if so, what would be the new features and mechanics that would set this game apart from HOI4. I personally think that they would flesh out the internal politics of countries and or bring more content that would let you reach far into the 1950s.