Just Imagine ..... John Byrne returns to DC!! What two projects would you like to see him take on??
I'd give him a relaunch of DC COMICS PRESENTS but featuring team ups rotating between Superman, Supergirl, and a current version of Superboy. That would let him do a wide variety of DC characters and focus on the Super family.
Second, I would choose the version of Starman that was created by Ditko years ago in ADVENTURE COMICS or Ditko's original Rac Shade, the Changing Man. I'd love to see Byrne cut loose on a Ditko creation.