It's going to be all bones and no meat at release
I'm not exactly sure where this attitude is coming from but I'm seeing it all over the place lately, most likely from the people who've only become aware of these games in the past few years. As someone who played EUIV on release, that game didn't feel like things were purposefully removed so they could be sold to you later. Things like Art of War feel like an integral part of the game sure, but before Art of War, it wasn't like the game didn't have war in it it's just that war was a boring slog where you had to occupy every province (which all had forts mind you) to get the 2 or 3 provinces you wanted, Paradox wasn't hiding Art of War in their back pocket waiting for the opportunity to sell it to people.
Now, CK2 might seem like features were purposefully removed since in the base game you can only ever play as Christian rulers, and Republics are completely unplayable until you look back at CK1 and realize that was a legacy feature. Yeah, it sucks you have to pay more to play as most of the characters in the game but that's more a problem with Paradox not realizing just how big they were going to make CK2.
I just really don't like this attitude that Paradox is purposefully stripping features from their games in order to sell them to people, it's clearly created by ignorance of the Dev Diaries, as well as the previous states of the games, granted I don't believe Paradox is innocent; it IS their fault for their really skeevy DLC policy albeit they seem to be getting better, at it's absolute WORST they were putting out CK2 and EUIV expansions within months of each other, it was insane, some of which promised to add "lots of features" most of which wound up becoming obsolete because of future expansions or barely change anything, so some DLC's only wind up adding about 1 relevant feature to future releases. (*Cough* Res Publica, *Cough* Cossacks, *Cough* Monks and Mystics, *Coughs up blood and a lung* AMERICAN DREAM)
I won't even hold Imperator against Paradox for now seeing as how they are as we speak making the game better for free, but if CK3 is a repeat of that disaster I will probably not be touching another new Paradox GSG unless a friend can convince me otherwise.