For a long time i have wanted something that could eliminate the need for redstone wire in between a switch/lever and whatever i was trying to apply the redstone current to from a distance, for instance a splitter cable or a nuclear reactor, so i am suggesting an electric switch or whatever you would call it that you can place on a block like a lever but instead physically triggering it directly, have it link up with another electric switch by way of a FreqTrans like 2 teleporters link.
As its electric nature suggests it would need to be powered, which i would implement the same basic form of power use like a Luminator.