We are planning to have update 3.3.5 ready for the live servers next week. As always this is still pending final testing but so far it looks good for next week. Update 3.3.5 will include the new Multi Feat Spec feature, the final tier four raids in the Jade Citadel, tweaks and improvements to various quests and raid/group encounters and also the level 80 versions of Dead Man's Hand, The Forgotten City and The Breach.
The Sprint revamp needs a little bit more testing so it will not yet be part of 3.3.5 but will be coming to live in one of the upcoming updates.
As soon as we have all the details ready for update 3.3.5 we will announce it over the usual channels.