Optimus's new flight attachments (specifically the colors and details of his wings and gauntlets) are based on God Ginrai's flight-endowing Godbomber components. The flight pack itself, to which the wings attach, doesn't seem to owe as much to the Masterforce character, appearing instead to resemble booster pack from the original Jetfire (and thus, the FAST Packs from Super Dimension Fortress Macross).
Ratchet once again harps on the fact that "Autobots can't fly", a common if frequently broken rule throughout most of the Transformers fiction, before being confronted with the harsh reality.
This is not the first time that an Optimus has taken up a huge, Matrix-related melee weapon for the final battle against a Megatron.
