I hope the next superman movie does amazing so in the sequel it could open up superman rogue gallery. Bizzaro would be the first one in line to star in the sequel in my books.
I would reverse his powers somewhat, instead of heat ray out of his eyes I would have ice ray, and have him shoot fire out of his mouth like a flame thrower.
I would play up the whole Frankenstein monster into the story. I think I will save the rest for the movie podcast that will be coming in November.