No, this is wrong. "All" that needs to be done is to cohesively bind all of the games together with a fluid conversion system. CK2 to EU4 is a strong starting prototype for just that, because it resolves the old issues by creating a mod for the next version of the game. If something like that could be created to bind everything from CK2 to HOI together, then we'd truly have a wonderful world.
I wouldn't mind a 'complete bundle', where one would gain all the games, dlc, and expansions in one ultra-pack. The Ultra-pack could include new games like an extended Rome 2 (Please not like the TW fiasco), a 'Worldwide' version of Ck2 (Rise of China and Reverse Sunset Invasion dlc anyone?) and a Victoria 3 (Please, please, please, please, please (a certain amount of time later...)) with the converter dlc connecting them all. Now of course, I wouldn't be able to buy such a thing until the cost reached a reasonable price (Such as five hundred thousand dollars, both my kidneys, and the collection of the eternal soul of Elvis Presley) but an internet user can dream, can't he/she/it/sentient organic robot thing? (You'll never know!