First of all zoro is awake like he drank 10 energy drinks. Second the grim reaper might actually up to taking away zoros damage. Obviously he won't die and obviously if he was done for sure he would be unconcious like Faintji. My guess is, that he will regenerate the damage and trade something off instead. Maybe his sandai kitetsu.
Or he might sell his soul to the grim reaper in order to stay alive but will be cursed for real this time. Its safe that zoro will do much more otherwise oda would have handled it very differently and would have made clear that zoro is done instead of building new plot for our saviour.
Or he might sell his soul to the grim reaper in order to stay alive but will be cursed for real this time. Its safe that zoro will do much more otherwise oda would have handled it very differently and would have made clear that zoro is done instead of building new plot for our saviour.