next patch the Talent Dualspec (TDS) goes live!
this makes it possible to switch between 2 talent tree's + glyphs without respeccing all the time..will be imba for excample a pally who likes to play retribution in pvp and who wants to be a healer (holy) in instances,now u can switch between the 2 talent tree's with the push of a button instead of respeccing..only thing u have to do then is switch ure gear!

blizzard posted an interview with the gm "Ghostcrawler"on their official site

Link: http://www.wow-europe.com/en/info/underdev/dualspec.html