I think they can bring John Wick back for JW5 but at the end,once he settles scores,just end it with he nd his dog walking off into the sunset,literally. That would be a fitting ending. Man falls off building,gets hut by cars,has like a million bullets and othe items hurled at him,but dies in a duel? Just not a great way for him to go. He should get to walk away,peacefully.