I thought as much. Lovely car. I was looking at importing one as they are stupidly cheap over the pond but the vat and duties they then add on makes it pointless. Also it will be the last of an era I imagine because they have started putting the eco boost engines in now and it's only a matter of time with the electric model being launched before the 5 litre disappears altogether.
The 5.0 will probably disappear when they cut it from the F-150 lineup (economies of scale, they put a lot more Coyotes in the trucks than the Mustangs). There was talk of the 2021 model having the 5.0 cut (replaces by a slightly smaller V8), but it looks like it’s going to be around for a few years in the trucks yet, so it’ll probably be in the Mustang for the next 3-5 years too.
The Ecoboost are great, but the 5.0 has far more potential after modifications than the Ecoboosts that already rely on twin turbos. A remap adds a lot of additional power to them, but it’s dwarfed by the installation of a stage 2 supercharger on the Coyote.