Paul Fitch Jr.

Its just a current thought i had i`d like to share and leave some place i could likly come back and fine the only things 100% i feel for sure from my theory would happen is Maleficent would end up being in 13 darkness with or with out Xeahnorts heart.

With the Kingdom hearts trailer you see Sora on destiny island with the master Erauqs/ Aqua`s key the master keeper. which likly means Aqua has left Realm of Darkness (Likely with the help of Ansem with her they go to get Vent out of castle oblivion) That or master keeper comes to sora because the time is right to set fourth kh3 to get Ven out of castle oblivion.(Which i believe would be part of xeahnorts plan.) Long story short i think Sora will accidentally trigger the "New keyblade war". Bringing back Aqua and getting vent from castle oblivion to protect the 7 princesses of heart.(which i think the 7 princess are just Xeanorts way to force battles between the keyblade wielders.) 7 Lights being ultimatly Riku Kairi Aqua Vent Mickey Axel/Lea And the mind blower Terra( Not Sora Da faq moment right?) 13 Darkness being Xehanort Braig Isa Xemnas Ansem SoD Young Xehanort Vanitas(Pre the split of Vent and Vanitas) Luxord/his human counter Marluxia Demyx Maleficent (Not on purpose is tricked by Xeahnort in a way to get the princesses) Terra-Xehanort Sora?!?!!?!?!?! While Sora may have the kingdom key he never was actually supposed to wield it.It was riku that was supposed to as stated in Kh3ds. I feel him fighting Terra-Xahanort will be counted as sora fighting on the dark side Terra-Xehanort will be good.(because of terra). And Xeahnort never said he wasnt successful in his plot planting his darkness in sora. Sora will likely end up summoning kingdom hearts and the X-Blade which i think will be wielded during a majority of a fight by Xeahnort fighting the 7 wielders of light. and thats all i have. Aside from thinking in some way Sora will wield kingdom hearts in some way.