7 has been Bungie’s magic number for forever. Exos have the number designations. It’s speculated that the number represents memory wipes. In Cayde’s case, I don’t think it’s memory wipes. He remembers Ace. It could be a cumulative total of consciousness swapping to new chassis. Cayde is also the only main character with substance and is, hands down, a fan favorite. He works as a solid pull for players to become emotionally invested in the story. He’s also a fitting way to show progress by retrieving his core and putting him into a new body, whereby he goes by Cayde-7. If it doesn’t go down like that, Bungie missed a HUGE opportunity and it may signal that all is not well with the leadership of our favorite dev house. I don’t think that’s the case. I’m looking forward to Forsaken. Watch and see. Cayde-7 will be a thing.