Remember the speculation for zoro's death on chapter 944?
It is based on the skull sign (symbol of death) and Ultimo (spanish for "final") on zoro, with him sitting on a grave.
However, the theory doesn't really fit with the theme for the strawhats as the main characters who are going to accomplish their dreams. One piece clearly takes the happy ending route so it is not likely for Oda to kill his main character. So whose graveyard is it, then?
People were too fixated to think of 944 as the chapter number. However, it is actually referring to the vivrecard number
That means this theory is actually a foreshadowing for zoro's role to kill kaido in the finale (the ultimo) of this arc