I think Madison's intention would probably have been that, as such technologies developed, the Constitution would be amended so as to give the government the powers necessary to manage them effectively.
Suppose every new technology that really required new federal powers required a constitutional amendment. How many amendments would that be? A dozen or so? Seems far better than having courts make up the rules as they go along.
The wording of the Commerce Clause is sufficiently vague to allow the regulation of ship navigation, railroads, or jet airplanes. Maybe you see some major difference which requires a constitutional amendment -- I don't.
Whether the power is contained within the Commerce Clause or some amendment, let's not lose sight of the issue. Madison did not intend that the states be allowed to undermine and subvert a constitutional Congressional regulatory effort.