So - yes - the wire would change every time the network is recalculated....
Re: urbansurgery's comment: "as a parameter changes there may be a little too much visual noise fluttering around as lists change to single items (still technically a list of 1) and empty" This is an important thing to worry about but I think in this case, since GH has no notion of time, no flashing would occur unless one was deliberately varying a parameter & in that case the flashing may provide helpful debug info. (another exception may be updates driven by scripting components) I not sure about this idea but perhaps another solution is static wire typing (were a wire can only take on a 'type' if an output is only capable of producing that type) In this case you would have to have an undefined wire type. over all I vote to have it included in an upcoming build to see if it is annoying to me (us) or not.
