Please, for the love of all that is unholy, give players the ability to replay campaign, in the late endgame.
Whether shortened segments arcade style or simple a swap back and forth, it would be awesome to have your end game build and rock through the great moments in the campaign again, with loot drops at your level. Add profane mindcage bonuses to increase level of mobs, and require full chapter resets to kill bosses. I think about it like old mephisto runs, cut to the chapter clear to the boss. Bring it back!
Please.