The Berlin wall marked the downfall of many programs. Even the eurofighter was put on the backburner and delayed for years. Water under the bridge, I think a clean sheet and start again would have been better. Now there is an EU division in the Euro 5th gen. With Germany and UK going their own way. A division of development money, that all are going to find hard.
As well as eating a lot of money. The ME isn't peer and even the obsolete gunned A-10 gets a run. We will need for China to get its act together. Before it kicks off in the pacific and real money is spent on platforms. Australia is trying to get an across the board modernisation, by 2030's. That's without looking at what it will be like after covid. That could be another can of worms.