I personally believe that once Meiou and taxes 2.0 is released, EU4 will see it's playerbase explode. Meiou taxes is like the first experience of eu4 on sterioids. It will revolutionize the entire game. Crusader kings 2 is probably in the home strech, I guess we might see some chinese lag gig if we are lucky, but that would be a lot of work so I am not counting on too much, but as Johan said about, it all depends on how much people buy. EU4 with Meiou and taxes 2.0 might still receive dlcs, and actually receive more purchases, but that would depend on how compatible they are with Meiou and taxes, because that is what most harcore EU4 players will be using once it is released. I'll refrain from commenting stellaris, as I have not played it. Lastly on Hoi4, I don't believe they will be churning out as many dlcs as ck2 and eu4, atleast not while the current game needs to be fixed, and there are a lot of modders that have proved they can deliever interesting ideas to the table. Everything in TFV could frankly have been achieved by modders, as proved by the Swedish tiger and 1956 mods, so I doubt people will be too interested in seeing dlcs that override already perfectly working mods. They will probably be very specific. . .