"The gunslinger waited for the time of the drawing and dreamed his long dreams of the Dark Tower, to which he would someday come at dusk and approach, winding his horn, to do some unimaginable final battle."
In the books, he doesn't have the Horn of Eld until he returns to the desert at the very end. In the comic books, he has the horn. Does this mean when they finish the comic books, the cycle will be broken and Roland will finally see what's in the top floor? Ooooo