The challenge with any of these items is deciding what can be handled by modders, what should be mainline game improvements that come with patches, and what should be DLC. Without too much effort, timeline rollback, dynasty CoAs
, Greenland/Vinland, and many other examples could be handled by modders. Others like a character modding assistant, African portraits, and Muslim flavor can be produced with more involved modder commitment. Items like better Crusades, naval combat, and trade will probably have to be done by Paradox. So should we clamor for all of this to be done by Paradox, even the easy stuff? I guess we could, and I'd probably buy it if it was close to the $2 value. But maybe it's better to rely on unofficial support from the community on those items. Honestly, I would donate to a modder's PayPal account if they gave me something particularly valuable. I'd rather have Paradox do things we can't easily do ourselves, always bearing in mind which situation is appropriate to charge for these improvements. I would argue that certain content, flexible de jure borders in particular, should come with subsequent patches to the base game.