i think the reason sora is in a comatose state is because xehanort convinces him to go to his dive to heart and meet his captive heats which is why u see sora meeting xion in the special trailer and while their he fights ven, loses and thats y u see sora sitting in vens chair. so xehanort knew this wud happen that way with ven brought back to life and sora asleep he cud use ven and vanitas to remake the x blade. then in kh3 the opening wud b saving sora using riku in a similar way roxas opened kh2.
i think the reason sora is in a comatose state is because xehanort convinces him to go to his dive to heart and meet his captive heats which is why u see sora meeting xion in the special trailer and while their he fights ven, loses and thats y u see sora sitting in vens chair. so xehanort knew this wud happen that way with ven brought back to life and sora asleep he cud use ven and vanitas to remake the x blade. then in kh3 the opening wud b saving sora using riku in a similar way roxas opened kh2.