So it's probable that a ride will be closing, due to the door referance. Wasn't it rumored a while back that Bizarro would be taken out and replaced with a new coaster within the next couple of years? So, maybe that's what they're going to do for 2013. I think the top two possibilities for them, considering the room they would have once Bizarro comes out and the coasters they're lacking are a Maverick like coaster, and a winged rider. Winged riders are becoming more and more popular, plus GA is one of the best roller coaster parks in the world, so a winged rider would add to what they already have. And a Maverick like coaster would just make there coaster lineup even better, plus they have almost every kind of ride Cedar Point has other than a terrain hugging launched coaster, and adding that to their arsenal can give Cedar Point a run for it;s money.
Other than adding a new coaster in Bizarros' place, the onl yother possibility would be the giga drop attatched to Kingda Ka that's been rumored, but the door reference in the picture wouldn't make sense for that. So, expect Bizarro to come out, and a new, better coaster to go in.