>>Anybody have a better plane in the works?<<
F-22.
Also, from what I hear, the new block F-15 can fly circles around the F-35.
Oz needs not a superior platform but a superior quantity.
Oz is pretty much a Los Angelos population sized country, i lived in Oz recently, and to be brutally honest they have no chance at all if China wanted to invade them.
The best defense for Oz would be for them to adopt the Israel method, by law all citizens must participate in a military class and to have weapons at home. Seriously.
Oz cannot field enough planes against China, they could develope other means, drones would be a good start. But Oz will have to rethink its policies.
The F15 is a very fast machine but the F35 can turn on a dime and watch the F15 go right by and then get behind it and fire. In dogfights with the F35 the F15 pilots have lost every fight even multiple 15’s against one 35 the 15’s lose, they simply can't find the 35’s.
I'm not saying the 35 doesn't have problems and I'm not saying the 15 is a bad plane, it is wicked fast, but, the F35 is the better of the two.