Intel will block overclocking on all their 8-series chipsets exept the z87 that is meant to use for overclocking.
Intel is producing at the moment new cpu's where the bug is fixed that allowed overclocking, the microcodes in the cpu's are re-written and for using the new cpu's a bios-update will be needed.
Intel is even planning to push an update through your OS that automaticly updates the BIOS so you are "forced" to stop overclocking your CPU. (unless you have a Z87 board of course).
The launch of the updated cpu's will be arround week 30 of 2013 but when the updated cpu's will reach the market is unknown and when the boards will have a new bios is also unknown.
(french site translated to english for more information about the bug and how it works)
http://www.asrock.co...at=News&id=1461 (for people that don't know what intel is trying to stop)