@IceKitsune
I’m starting to lose faith in the Hasbro community. Anypony else?
I’m pretty sure they already said that the 100th episode will focus on secondary and background characters. (or something to that effect) This is just likely saying that the theme is Cutie Mark Magic (or at least the toy marketing gimmick is) and Season 5 has the 100th episode in it, which is another thing they will push in the marketing.