Thanks to poster blacklai of TFND.net for a good look at the upcoming Combiner Wars Superion (though note that they are using Dragstrip as one of the arms rather than all five Aerialbots ).
The gallery contains multiple pictures of the combined figure in various poses, which gives a good indication of the range of movement that it’s capable of.
The hands and feet are interchangeable, so any of the smaller figures can be either an arm or a leg, as was the case with the original G1 combiners.
The figures should begin arriving at retail during Spring 2015.