I've written my own version of it for fun and I think there's a lot that can be done with both Death and Reign if given all the toys in the chest to play with, but I'm not sure DC needs to focus on their other "we don't know what to do with Superman" trump card, killing him.
We need to tell other stories with the guy, and I'm not a fan of rehashing old stories just to update them. Hell, that's kind of disrespectful to the creators of the original work.