Sad but true. I would love to see DC explore Superman Prime's character a little more now that the multiverse is back.
They should do a short storyline involving hypertime, and have Hourman one million send back Superman Prime to take down Anti-monitor now that he's joined with team Parallax or some such. If he is as powerful as they imply that he is (but not shown through feats) then it would make an interesting fight, especially considering that Superman Prime has a Green Lantern Ring and Anti-monitor is working for the yellow lantern team. It would be the ultimate match up.