Ever since Heir to the Throne DLC for EU3, the complexities of the HRE have been one of the most defining factors of European politics in Europa Universalis, and so it shall be, as in history also every European ruler had to position themselves somehow in relation to the HRE. One of my big hopes is EU5 inheriting the HRE no less complex than the one that will come in the Europa DLC. Initially lauded as the bright future of all Paradox Games, it turned out to be too abstract and clunky, being referred to as mana, even by the Devs these days. I, for one enjoy the thopugh of finally putting monarch points bechind us. What are your hopes and expectations regarding EU5? Even if the development of Europa Universalis 5 hasn't yet started, it soon will. the scope of revamps coming with the next DLC is no excuse - CK2 got lots of huge revamp in Holy Fury and following patches. There may yet be one smaller DLC left - the devs have repeatedly mentioned South East Asia as an area that could be expanded, but that may also come in the form of a Manchu or Iron Century style big free patch.
One huge DLC that takes a year plus to develop. Years after release, with a dwindling team. EU4 is now where CK2 was before the Holy Fury DLC. Some of you may still be in denial, but the signs are clearly there.