Some scenes might require particles [rain, dust, smoke, etc] but I reckon its not that hard to do because it wont require tracking since they`re stills.
I`m thinking about having a lot of camera moving [panning in and out then moving left or right, etc] so it doesnt get boring.
No, I have never used 3D in AE before, like Cinema4D or something like that, though I don`t think this might be necessary as I don`t want to achieve a 3D look but rather a 2.5D or 2D look, thats why so many stills so I can change point of view often since its an action music video.