I’ve seen the older f22 fly as well as the newer JSF (whichever configuration the marines have purchased) and they’re both wildly capable. There isn’t much more left to develop really, except for ramjet/scramjet high altitude fighters and spaceplanes.
I guess the never ending arms race with russia and china is still going, the russians have the PAK-FA which basically looks like an F22 but with a fatter, almost Delta wing, and the chinese developed the J20, also a very 1960’s NASA looking blended delta
the F22 is still the fastest climbing fighter I’ve ever seen, reaching 5000 feet in a matter of seconds. the F35, while not quite the powerhouse that the falcon is, is still impressive in terms of its STOL and air to ground capabilities. was it worth untold billions, i don’t know
