If you have Trapcode Particular, this might be workable – at least the helix part.
Off the top of my head (I don’t have AE in front of me right now) I would create two light emitters for particular, parent them to a 3D null, make sure they’re polar from each other, then rotate the null as you move it up or down. If you set Particular to emit a whole ton of particles (circles, probably) and then put the velocity of emission on zero, you might come out with a 3D spiral. Then you should be able to move the camera around it.
As for spheres and icons – gee I don’t know. You might be able to fake a “ladder” with just a 2.5D black bar, but icons? Hmmm…
You can sometimes get away with creating “fake” 3D objects in AE (at least “fake” extrusion) by duplicating layers and placing them behind each other, so that you essentially have a bunch copies of one layer REALLY close together. This kind of gives the illusion of depth, just don’t look at the sides head on, because then it’ll become translucent.
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