New weapons are def needed and fast - the old ones almost guarantee BVR doesn't go well. Very high likelihood its missiles will miss, a higher likelihood western weapons won't (particularly Meteor).
And the Archer is long in the tooth, so WVR isn't a guaranteed slam dunk either. On top of all that, new generation American weapons (AIM-260, Perigrine etc) will soon make their way onto the world's weapons market. Couple that with the F-15EX's mission computer (said to be the world's fastest), and I'll take it any day vs. even an up-engined/up-rated SU-35.
But it sure does look pretty, I'll give it that
