You need both, the Hi-Lo mix has worked for decades, no point in messing with it now. The F-35 is more versatile and will offer great strike
capability as well serve three branches and a boatload of countries.
Im not sure what fighters cockpit this is but i sure that its not the f-35 because the f-35 does not have a HUD. All of the F-35's Information that
would go on the HUD goes into a special helment that the Pilot wheres