In the Dev chat on stratics.com a Questoion was asked:
5:38:19PM <Brannoc> *Tesurly* Are the harsh keying requirements for entry level->end game raid zones going to stay for future expansions, or will some sort of backflagging option be available?
This was the answer:
5:39:05PM <Tigole> First off, players will be happy to know that there are some *limited* backflagging solutions going into the game tomorrow. It's not for all zones but for a select few.
5:39:17PM <Kalgan> omg patch tomorrow
5:39:31PM <Eyonix> omg!
5:39:42PM <Tigole> Regarding the keying process, I think a certain amount of keying is cool... it allows for guilds to separate each other from one another.
5:39:47PM <Kalgan> jeff is so fired...
5:40:10PM <Tigole> Most of the keying issues have become issues more because of tuning.
5:40:21PM <Tigole> The Karazhan key isn't terribly hard to obtain.
5:40:29PM <Tigole> btw
5:40:33PM <Tigole> Patch tomorrow =P
This is official as the lead designers of WoW were answering the questions asked: Tom Chilton [Kalgan] and Jeffrey Kaplan [Tigole]
For a full log of the chat click the source link.