What could of Happened if Princess Cadence didn't save Shining Armor

In the the castle Princess Celestia says " Fillies and Gentlecolts We are gathered here today for unitement of Shining Armor and Princess Cadence"  The fake Cadence said " I prefer Princess Mi Amore Cadenza" Princess Celestia said " Okay Shining Armor and Princess Mi Amore Cadenza"  In the halls of the castle  Twilight and Cadence are going to crash the wedding but still doesn't notice they're too late Twilight said " your ready Cadence?" The Real Cadence said " Yes i am!"  In the ballroom Princess Celestia said "Now pronounce you mare and colt"  Twilight and Cadence runs in and cadence sees Shining Armor and Queen Chrysalis kiss  She breaks down crying saying " We didn't save him in time he hers now!"  The fake Cadence turns into her real form And says " Oh Princess Cadence are you crying cause you didn't marry shining Armor and i did" Princess Cadence said " Yes I can't believe it how late i was to save him  Queen Chrysalis said "Yes you are now my Changlings are running free in canterlot and we'll take over all of equestria and everypony will be under my control!" Princess Cadence Said " We're doomed"  Twilight said " We can stop her Let's go!" They attacked but Queen Chrysalis is too strong for them Twilight couldn't stop her neither Cadence can  Chrysalis has defeated everypony who tried to stop her.And Queen Chrysalis takes Over Canterlot and takes over Equestria And has Everypony and Shining Armor under her control The End.