Talk:The Cutie Re-Mark - Part 2/@comment-1031724-20151106010944

Again, she fears her efforts to stop Starlight from altering the past may be in vain.

Which means, Starlight probably does alter the past, but reforms either by seeing what hell the villains have turned Equestria into because of what she did, or else the Cutie Mark Crusaders teaching her the true meaning of cutie marks, or both, and then goes back again and stops herself from altering time, probably by absorbing her past self. Thus setting the timeline right, which only she, Twilight, and maybe the other Mane 5 will remember.

Because if the timeline doesn't get restored, and this is the event Twilight referenced in Friendship Games, then Sunset Shimmer wouldn't still be reformed, and the Humane 5 would still be apart