With Hal's return, will they be bringing back his old sparring partners, like Evil Star, Sonar, Dr. Polaris, etc.? Will he tangle with the new rogues like Grayven, Fatality, or Effigy? Will we see new villains, or new versions of old villains? How will Hal react to the reformed Goldface, a major enemy of his, being a union leader and hero in Keystone city? Y'see, my favorite part of comics is the supervillains, and Green Lantern, whoever he is, deserves a decent rogues gallery, worthy opponents to match his power against.
Also, here's a thought. If Hal returns, will the Corps return with him? Does that mean John and Kyle will still be GLs and part of the GLC? I'd personally love to see Hal, John, and Kyle as GLs at the same time. None of them deserve to be swept aside just to have one GL. It also might make the book more interesting having multiple lanterns, and taking turns putting them in the spotlight.
