I'm personally not so keen on the way in which smaller thrills are continually added until the point at which more major development occurs, particularly when implemented in what appears to be a frenzied attempt to hide the park's family friendly past from the new target demographic in the way that something like Storm Surge was. Obviously, successful operation as a business is important, but the way in which filler installations pop up every year doesn't always seem wholly worthwhile. The companion attractions to bigger rides such as Saw Alive and Nemesis Sub-Terra, for example, are certainly enjoyable, but the addition of yet another of these to Thorpe Park within only three years of the first could be excessive (especially when in conjunction with something like The Swarm, which really doesn't need explanation and has much more impact without any sort of maze or dark ride to complement it).
I'm not sure that missing one year of small scale investment would be a negative thing, as many sensations offered by flat rides are already covered and, with fairly minimal space, it may even be good to wait until there is a more evident requirement for something specifically at the park - the foundations for development are already quite weak with so many things having been thrown together in a way that appears quite haphazard due to the variety of rides and attractions that they try to offer at Thorpe Park. It would be great to see something new, but I hope that things won't just be added for the sake of it - the addition of a colourful raft ride to the detriment of almost everything in the surrounding area wasn't exactly the best thing to have ever happened (not that I'm in any way trying to compare Storm Surge and any new attraction that may come about, I am merely making the point that there isn't really any need for a new installation next year except for on the grounds of profit).
With regards to the fence, it does look a bit permanent to be hiding any sort of small construction, so it's more likely to be there for aesthetic purposes and to hide the fact that the remains of a tracked ride are still there. If there are to be any changes for 2013 (which there are bound to be), I would possibly rather see some attempts to tidy the park in this way than to add something totally new but not necessarily required.