This idea mostly pertains to pre-made parties on a single server.

Using The Old Republic as an example, the duty finder system they had allowed you to select your role depending on what your class was. Jedi Guardians, usually tanks, also had the option to queue as a DD.

I'd like to see a similar option here. An ACN can have the option of Healer or DD, a Gladiator can have the option of Tank or DD, etc. etc. While this doesn't have a direct impact on a pre-made group, it would affect one main thing: Limit Breaks.

There are many, many instances where you aren't going to need a tank or healer limit break, but if you're running something with, say, two Bards, a Scholar and a Paladin, you're out of luck with a damage dealing limit break.

With a role selection system, your Scholar could use a caster DD break or your Paladin could use the melee break. Bards...well...I don't see what they would change to for DD, as even Meteor seems out of place for them. But you get the jist of what I'm saying.