Display future input/output ports future upgrades of building will have

This would be mainly for the benefit of newer players like myself who are not already aware where the input/output of future upgrades of a building will be or even in some cases that there will be any at all! I was very disgruntled to learn that my research lab placement made it totally impossible to belt the inputs/outputs, and the same for irrigating my farms.
I realize there will be the possibility of confusing new players who think differently, but I think on balance the present situation is worse. Surely marking the inputs/outputs with something like "🚫" instead of the normal mishmash of potential inputs/outputs will clarify the situation for the vast majority of people.

P.S. What I'm imagining is that the ghost would have the future stuff, but after it's built then it just has what it actually has.