Classic toys has to be the first army builder, but I hope down the line we get singles of the other Horde Trooper varients, making them stand out as leaders would be cool.
They raised the bar so high with the palace guards, I don't know how they are going to keep the Horde Troopers true to the original, yet blow our minds with accessories. Actually how many weapons has a Horde Trooper been seen with. The red staff from the toy, pistols and rifles from filmation, anything else? I don't think swords and axes would look good with a robot army.