Will it matter? They are on too much, so it won't matter if they are together. They are the centerpiece of the show...IMO the reason GH can't pull to No.1...
If GH would get creative and cease the redundancy of its storytellying a Sonny/Carly reunion would be ok.
The think I resent the most about Sonny pairings is that he has a history of destruction, and Carly has a history of trying to 'fix' things...by lying
So whatever they do with Carly/Sonny...it won't matter they will still suck up the airtime.