Is nobody ever gonna die from eating 2 Devil Fruits or drowning as a Devil Fruit user?
Big Mom should have died by eating 2 DFs and Blackbeard should drown imo if he does too.
Thematically I think those would have been most fitting.
Alternatively BMs death should have involved her living her remaining lifespan/soul immediately somehow. Maybe Brook causing it via his DF somehow?
Would have to think how it could happen.
I hope the eating 2 DFs thing isn't a myth all along unless it was to show how truly ballsy Blackbeard was and thus is and therefore making it seem like he knew his fate wasn't to die there for eating 2 DFs as well or he knew the more than 1 DF rule was just a myth somehow or was skeptical if it and challenged it and thus his fate there and then too.
Maybe Xebec drowned when God's Valley was destroyed somehow? If he was a DF eater?
I do really wanna see those 2 Chekovs Guns you mentioned cone to fruition somehow. Waited millennia for those too.