-Why were their three coffins for Utena's parents' deaths to begin with? Why was there a third coffin there?
-More importantly, why did the coffins have the rose seal on them?
-What is with the near-identical similarity in how Utena and Himemiya were shown in their coffins, laying in that position among rose petals?
-Moreover, WTF at that whole scene with Himemiya in the coffin?
-What is Touga's deal? And who or what is this "End of the World" he now seems to be in contact with?
Probably my only major theory right now that is probably fucking wrong is that this "End of the World" is Utena's prince. Mainly because he seems to be pulling all the strings, his giving of the rose seal ring to Utena could be some part in his grand scheme, and Touga seems to be very familiar with everything that's going on, including Utena's situation (mainly him saying "Because your prince was a lot like me, right? " is what's tying them together for me, because I don't think he's this prince, and as has been mentioned, he is in contact with him).
With that all said, I would just like to say, fuck Saionji.