What would happen if Luna did not become Nightmare Moon and instead created the Shadowbolts to have ponies appriciate the night.

And in response to that, Celestia created the Wonderbolts just to give her sister some compettition.

And it has been a thousand years since then and Soarin and Rainbow Dash are good friends and both are hoping to get into the Wonderbolts but then the Shadowbolts arrive.

Image I found on Google.