Would it be possible to show you prior to getting a full group to see where you fall? I was q'd up for an 8man story mode for 45 mins without getting into one. I imagine you start out in a "pool" then move into forming a grp when you q. So it would be nice to see what your group still needs before all 8 or 4 (for FP) actually get in. That way , if your group has 7 (3 or 4 or whatever) people assigned to it, you can ask friends/guildmates to join according to whats still needed. So if you have 7 people and are just waiting for a tank to Q, then we can ask an appropriate tank to q to get the grp formed and completed.
With the currently system, you have no idea if you are the only 1 in q or the group or whats still needed in order to complete the group. Personally if I knew i was the only person sitting there for the SM OPs, I probably would have log out earlier than wait 45mins in the hopes of getting in one.
Basically it would start as normal of you q'ing. Then if you keep the LFG tool open or click it again, it would then show you statuses. Such as "In Pool" or "You are In a Group and show that you are waiting on a tank/dps/healer"