Not likely. First off, you have to be rooted to access. Even if they did enable that, the CPU is not meant, from the factory, to go about 600mhz. So by allowing the software to adjust it to 800mhz with an OFFICIAL update would screw them over two fold: one, battery life could potentially drain depending on how users use their phone. Two, in the long run, overclocking a CPU WILL shorten its life. It may shorten it by some insignificant amount of time, or it could be significant. No way they are going to risk having that happen and have to replace a bunch of units.
It's at 550mhz to stay, I can guarantee that.