I used most of these features in my latest animation, and between the last several animations, I have used all of them. Some of these things are useful for certain objects, such as the bloody bodies of NyxLG and Bluekelp. The overlayed textures were also used in the painting, breaking blocks, and the world foliage to create different biome colors. Particles were used in the smoke and explosion. The normal map was used with the water, a displacement map was used for the foliage (I forgot to ask about a displacement modifier). In one of my older WOA animations, I animated a lever with a built in addon. The animated furnace textures and the animated phone texture that Martyn held in my final WOA animation were both videos, and fire that has been used in my animations used an image sequence.
Some of the other things from my list that were used in my recent animations:
• The graph editor was used to alter the keyframe interpolation for my airplane.
• I made a couple of rigs that had both IK and FK rigging, and they were used my latest animation.
• I have used both fog in the compositor and volumetric fog.
As you can see, I regularly use this added functionality.