About the supposed dead characters coming back in the story. I just conaider it like a characteriatic of Oda, I don't like it at all but at rhis point we know Oda does this almost all the time sobthevresult in the long run is just that when I see a secondary character supposely die (Pound, Monet, mr 2 etc.) I don't give it much weight.
With this reveal imo at this point, if it is actually Pound coming back like it seems, we can be almost sure to see Monet again in a cover story or something, not that somebody should care.