Not too much detail CM for obvious reasons. Some progress, but it's a train of events with loud echoes of the Eurofighter programme. I think it's safe to say that cooling is a publicly-known problem (A la Eurofighter in the early days) and the narrow band 'radome', which is there for good reasons, is limiting. But the bigger issues persist. There is a lot of good work going on and fingers are crossed.
Sorry if that's vague. Don't give up hope on the current fit, but equally don't hold your breath for upgrades. Do remember, it was never supposed to be air dominance.