A minimum standard controlling the choices of free people probably shouldn't include assumed, future choices of those people.
However, that would also include requiring a pre-wire for solar panels or an outlet for an electric car. Both are assumed future choices. Hmmm...I'll stop there and keep this on topic.
There are assumptions of human behavior and choices throughout the code. However, adding a roof to a deck or turning it into habitable space requires a permit. This would prompt the analysis of the new construction being requested for permit. If someone builds a roof over a deck without that request, the foremost problem is work without permit, not foundation design. That makes that "assumed future choice" into an "assumed, illegal, future choice".