I really LOVE this comic and i'm just wondering are you thinking of continuing or making a sequel this comic where at lest Celestia may be Luna and very may be unlikely at lest until latter Cadence sees Twilight again when Twilight trys to get in to Celestia's school on the day she takes the school's test??? I would REALLY like to see how you go about it. if not then i understand that you might be too busy to do it or don't even want to do it and i get that if so sorry for your time
I bet Celestia beg & warn her not to try and harm her but luna refuses to listen hoping inflict great harm to celestia for after what she did. And then just when luna was about to attack her dear sister Celestia then suddenly uses a powerful on luna summoning a voretx underneth luna slowly sucking her in. Celestia tells luna that she warn her not to harm her and celestia realises that Nightmare moon is still within luna which is what causing her abusive behavior towards her sister which is why Celestia plans to use her vortex spell to send luna back to the moon and may have to imprison her there for many more years until its thousand year seal would be broken.
to be fair celestia did that hypnosis spell so that she can enjoy some quiet time for herself in the library and the reason celestia took interest in twillight is becoz she wasnt affected by her "advance spell"