SPOILERS... DO NOT READ IF YOU HAVEN'T SEEN NEW EPISODES.
Ok guys... I got only few things to say....
1. I WAS DAMN RIGHT ABOUT EVERYTHING SINCE THE MOMENT I WATCHED THE 8 MINUTES GIVEN TO US BEFORE THE RELEASE. Not only My comic is now correct... but I was right about Sombra and his evil magics being.. corrupting powers.
HE... AND HIS POWER WERE RESPONSIBLE FOR MAKING LUNA EVIL!!! You could see that with that doors Twi used. She saw all the bad things. Imagine if Luna was infused with this type of power... if she was able to hallucinate on daily basis seeing like Celestia is making her look bad. Imagine this power growing inside her. And in one moment it take entire control over her. And so..
Nightmare Moon was BORN!!!!! WE KNOW HOW IT HAPPENED GUYS!
2. Luna being ... angry... Why? Cuz maybe she realised that Sombra was responsible for her problems and wanted to KICK HIS ASS... OR.... NMM is still in her... and she tried to go there and use the crystal heart ... but I dont think it was like that.
3. POOR CADENCE :C I knew she is STRONG! Now I know she is VERY powerful.
4. Sombra was able to block magical powers..... AWESOME!
5. Ok we have some history of Crystal Empire. We know she had the queen... but we dont know if she had any successor. So lets assume.. that this queen was Fausticorn from Team Awesome. She was their queen, and knew that power of this place is GREAT.. and she had to protect it. And Crystal ponies knew about Crystal Princess...... Simple. Fausticorn TOLD them that one day a Crystal Princess shall come and rule them like she does. SO?
CADENECE REALLY CAN BE TEAM AWESOME MEMBER! EVERYTHING FITS!
6. The very ENDING... Luna teleported some black book to her.... WHAT!?
WHAT IS THAT SHIT! ..... a prophesy? A spell book? DAMN...
I WANT TO HEAR WHAT YOU THINK OF THAT BOOK. WHAT IT CAN BE... for me its a prophesy of the dark times ( possible return of The Eclipse.... or a porn book
as I still think that Luna and Tia are lesbians. )
OR.... MAYBE ITS A BOOK.... NAAAH... lets think of it shall we?
SO... overall... I was happy to watch this episodes. My comic is 99 % accurate ( even if I started making it a WEEK ago.... or more. ) so.... be ready for incoming CANON STORY COMIC of..........
MLP: Team Awesome
Corruption
Only on Bonaxor deviant art channel
`anmari has been spreading her infectious positivity throughout our community for over 6 years. Throughout this time Ana has been at the core of all things devious, passionately developing an eclectic gallery, helping organise devmeets, participating in chat events and also recently completed dedicating her time as a Community Volunteer. We are absolutely delighted to bestow the Deviousness Award for May 2013 to `anmari, congratulations! Read More
Sta.sh
Theme
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.......... The design MUST HAVE ONLY 2 COLORS; BLACK AND WHITE
this journal 
1.- black book with stars and swirls
2.- twiligt's next level of magic training
3.- twilight sayin ''fuck you gravity'' and using that anti-gravity spell to go up the tower (it has nothing to do with this, but come on, lets face it, it was bloody awesome)
4.- celestia and luna doing an assert movement with their heads at the end.
conclusion: that book seems to be related to starswirl the bearded, and it could be used for twilight's next level of magic understanding, maybe, this is to power her up so she and her friends can withstand more complicated situations, or maybe to be some kind of heir to some great power, or maybe to just accidentaly spawn millions of pinkiepies to destroy the universe, i mean, if this has an objective, it could explain why celestia and luna dont interfere with major problems (NMM discord and chrys) i mean, celestia already got beaten by chrisalys right? so something like that can happen again, celestia needs more ponies with strong powers to help her maintain peace in equestria (it still doesnt explain why luna didnt do anything in that ep ¬¬)
so yeah, that's my conclusion, thanks for letting me waste your time with my suspicons on future episodes, have a nice day/night sir ^^
Starswirl cutie mark?
To be honest, though, I was expecting more from him. I was expecting some epic battle between him and the Mane 6 and their Elements of Harmony. Needless to say, I was sorely dissapointed.
Overall, though, the episode was good, but not epic. Not like the Season 2 finale. That, to me, was epic!
I wouldn't compare King Sombra's dark powers(The Dark Side of The Force?) to what NMM was. I see that more as a demonic possession that turned Luna into NMM. Could the demon have been King Sombra? Who's to say?
Even though King Sombra looks to have been destroyed, I don't think that's the last we'll see of him.
By the way, did anyone/anypony also felt like King Sombra was kind of the pony version of a combination of Jyggalag and the Lich King?
I don't agree with the other stuff though.
For me, Cadance was cleary the Chrystal Princess/Queen from the past. I think that she either was reborned, or that Celestia and Luna could save her somehow and managed to bring her back early enough as a foal, so that she could be raised and protected for this event. All of the episode made this very clear - she has the Crystal Heart in her Cutie Mark for that matter. I doubt that this was just a prophecy.
Also, I think the hints and Lunas concerns are more about Twilight. Luna still misses the deep bond Celestia has with her, and the trust that built up. Celestia has something planned for Twilight, and I think that she actually do push her forward to solve all these dangerous threats instead of the Princesses doing it easily, because Twilight has to be prepared for something - and that makes me really curious.
Don't get me wrong though, I think every theory that's made has a great value - your theories aren't bad, just because my opinion differs ^^