Whether the F-16 comparison is valid or not, it looks like a bloody good idea, and very do-able. Almost all of that except the big wing was eventually done on Jag '95 & '98 post Gulf War and turned them into damned good aircraft. Whatever it did to the turning performance, the big wing would have been welcome simply for the extra pylons: a Jag with two tanks, two Sidewinders, an ALQ-119 and a BOZ pod was left with one pylon for bombs....
I remember from my younger days that BAe offered up a Super Jaguar with uprated engines and a bigger wing.
It was about 1978 but all Ive managed to dig up is a page on Flight Archive.
Can anyone else supply any info please ? ???