Maybe I'm too sentimental but I really loved Johnny and his relationship with my V. It's my point of view but at the end I think my V considered him like a big brother. Their goodbye in Mikoshi broke my heart. (I tried a lot of ending and it was heartbreaking everytime).
Anyway, I would love a DLC where V finds a cure for herself/himself and also, find a way to bring back Johnny, Alt etc... in real world and have this kind of
scene. But as I said, I think I'm too sentimental, I finished the game wenesday and I feel sad now.
But seriously, I read a lot of pages in this topic and there are a lot of good ideas !
(Sorry for my english)