Scoots has been in SEVERAL episodes but she, other than with the personality and the fact we know what kind of cutie mark she might receive, but other than that...unless there is smaller versions of the elements, there isn't going to be anything more than that. (Maybe Scoots is an element. She could be the Element of Bravery if they created more, like the "sub" elements)We never hear about her past or even if she is an orphan, worse, we can't even connect Rainbow Dash OR Cherilee to her. (In 'Hearts and Hooves Day' they could have suggested that the teacher was her sister, like in the other versions, but this version they aren't. The creator said that Rainbow is just a mentor, not a sis or mother)