I was reading at KICentral and alot of people seem to think that Cedar Fair is tired of putting money into the thing after it's been modified once and still the same results have happened. I don't blame them at all if they have given up on this coaster. Another thing that Screamscape reported that the park was selling SOB merchandise at huge discounts at one of the stores at the front of the park. While I didn't go that particular store, I didn't get to see anything. I would think that if they have plans on re-opening it that all the signage would still be up and not just the wood box that held the ride logo, even if they planned on keeping the ride closed for the remainder of the season and plan to re-open it come next season.
As for the future of that site, my guess would be that we could see a better coaster go in there in which they wouldn't have to pour so much money into trying to fix problems that keep developing. IMO, I think the park could really use a B&M invert (Raptor was so much fun and since Kings Island is a Cedar Fair park and Diamondback really was a success for the park, they should put one over there to compliment the Action Zone area).
Again, I think that SOB has seen its last riders, unfortunately.