I wonder when airplanes are going to be new again, or books, or cars. Maybe you mean everything related to computers? I am not sure of even that though...
"Kindle" and "Tesla' are 2 out of 3...
Drones.
Concorde was a good try. It failed for political and sociological reasons, but hypersonic airplanes were set to revolutionize air travel until it became politically unpopular to support. We're facing down a generation designed around space-based air travel, though, so it could happen again.
You mean supersonic airplanes? I don't think hypersonic airplanes have ever been seriously considered for passenger travel.