Ah, but is there actually evidence of that? Just because they had worked on the DLC content before the release of the game does not mean that they were cut. I'm sure they always planned to release them as DLC. You can object to that if you like, but can you really say that, for all its faults, Civ V was lacking in leaders and wonders? Even without DLC, it launched with 18 civs, just like Civ IV. In this sense, adding six new civilisations over 12 months is really no different to releasing six in an expansion pack. It is irrelevant when they were first conceived. Besides, even before the age of DLC, I'm sure developers deliberately saved planned features for expansion packs. I have no idea if this happened with Civ IV, but it was certainly the case with The Sims games, each of which have had a pets expansion, for instance.