Agree on the clock bait, but there is at least one customer with deep pockets who is interested in a next generation 747.
The channel that posted this seems to have nothing but improbable videos about the airline industry, all posted within the past month or so. Did you know that Airbus is shutting down?
There was a very interesting video where the guy was doing pure speculation; and said so. He said Emirates really needs the next replacement for the A380 and an upgraded twin engine version of the 747 fits the requirements. In his opinion, Emirates is the only airline which has the specific business requirements for a larger plane due to limited slots for T&L where they fly.
To back up the concept, he discussed a pretty cool "UltraFan" (I think that was the name) for a new super sized engine which Rolls Royce is developing. Rolls Royce has stated they are developing the technology and will put it on the shelf until a customer requires it. The reason for the speculation was because RR changed the program over the years to make the engine larger, and required RR to build a whole new testing center (which is very expensive).