Scootaloo in the future.
She is working hard in order to become a Wonderbolt and impress her mentor Rainbow Dash (now captain of the Wonderbolts). In the meantime she works at the weather-making factory.
Scootaloo continues to see her childhood friends Sweetie Belle and Apple Bloom.
Her cutie mark is the same of the old G3.5 Scootalo.
Rainbow Dash image