Luffy will be fine as long as he has access to meat! So far Oda hasn't drawn attention to Luffy's injuries the same way he has for Zoro's.
Zoro needed medical treatment after fighting Hawkins. Killer stabbed him with a scythe, which Zoro commented that the injury wasn't good before the final battle. He was slashed by Apoo. Those are all pretty standard One Piece injuries. Nothing a few bandages and rest can't heal.
After taking an attack like Hakai, Oda spent several chapters pointing out how Zoro was in bad shape. There has been an emphasis that Zoro may be healed but he will feel double the pain. It would be poor writing if Oda tells us this and then does nothing with it. Therefore, I think Zoro will leave Wano in worst shape.