I do not Argentina could retake the islands on their own, plus I am not sure there is the stomach with its surrounding neighbours for a conflict, while they have banded together to block a ship flying a Falkland flag that is just a bit of political posturing, and if it got to bad I am sure the UK would have no problem helping the FI ships re-registering in the UK.
The Argentina air-force has not really improved since then, plus there are not 4 Typhoons down there, 3 active 1 for spares, and the Rapier which I belive is still one of the most fear low level SAM systems in the world, plus hopefully this time they have not put them on tops of hills.
The 45 is untested in battle, but I will no doubt expect attack drills using the Typhoons.
The biggest issue with the 45 and I am not sure if this has been fixed is anti-ship missiles. While it may have all the toy's to shoot down aircraft, I am sure on the last testing it was said in theory we can shoot down a supersonic anti-ship missile but we are not going to test for it.
Kimbie