Guild Wars 2 devs have posted a note to the community to prepare them for some big changes coming to Elite Specializations with next week's update. "We're targeting a few elite specialization to receive trade-offs, and we expect to continue doing this in future updates". The example of what a devs consider a trade off is the Necromancer who, when choosing an elite spec, loses Death Shroud, but they gain additional abilities.
The post showcases changes coming to each profession to provide players with a forward look at what they can expect. if you're actively player Guild Wars 2, it's definitely worth a look.
Check it out on the Guild Wars 2 forum.