*NERD MODE ENGAGED*
The A-wings we see in Return of the Jedi, yes. HOWEVAH: Those were a new design concieved of by Jan Dodonna and Walex Blissex. The fighters we see in Rebels are colloquially called "A-wings", but their production name is the R-22 Spearhead, which didn't have near as much speed as the Dodonna-Blissex RZ-1 A-wing. The Spearhead's speed and maneuverability were comparable to the Z-95 Headhunter, but with limited firepower (no warhead launchers) and shields. The Incom T-65 X-Wing was larger and less maneuberable than the Spearhead, but had a comparable top speed, vastly superior shielding, twice as many laser cannons and a pair of torpedo launchers to boot. So while the RZ-1 A-wing was intended to replace the X-wing as a space superiority fighter, the X-wing is meant to replace the old R-22 model of A-wing.