zelaminator wrote: »All yes, except maybe IC
The Fighters Guild and Mages Guild quest lines have always been part of the base game, and Craglorn has been since it released. Of course when it first came out a subscription was required to play, but everyone got Craglorn without paying extra and when they made the subscription optional everyone had access to Craglorn, even people who bought the basic version of the game after that and never subscribed.
The Imperial City is free, but I think you still have to claim it from the crown store, it's not automatically part of your account so I'm not sure if you would include that or not.
The other unclear one is Morrowind: it is now included in the standard edition of ESO (the cheapest version of the game) and I think all the other versions so in that sense it's part of the base game but I think if someone bought ESO before that was done they didn't get Morrowind added so there will be players without it.