Did kaiba going back in time make the memory tablet

in dark side of dimensions kaiba either goes back in time or travels into the after life to duel with atem one last time. if this is him going back in time is this the inspiration of the memory tablet engravement of the pharaoh and Priest Seto is actually modern day kaiba. thats how i always understold kaiba going back in time angle it creates some good symmetry and a sorta loop

maybe im misunderstanding the events of the movie and maybe it is kaiba going to the afterlife