Here is what I would like to see sooner than later.

I would like to hit a quick key that opens a window for looking for group. In this window I am able to que myself in there with a note like tank, dps, heals, etc. Also in this window I am able to see others who have que'd as well. Then if forming a new group or need more I can /tell them if they like to join.

I think this would help finding people for instances instead of spamming chat or waiting in chat for a group. This lfg system can also work finding groups for anything like group quests, raiding, pvping. Just have a drop down box stating what type of group you are looking for.

Right now you have to manually join lfg chat. Don't think anyone knows that as chat has no one on it