I'd say that the style of The Sims 4 could not be changed, indeed the graphic design (which is clear and beautiful) about the sim people, animals and objects/accessories will stay as they are; a "too much realistic which turns out to be very unrealistic" style as it happens with lots of CC is not what will make it all…
The list on top of the topic should be updated about the features that were added in the game… anyway: The should be some option to change the height of the sims, like every adult has the same height, the same for every other age.