I have been playing this game primarily solo since I bought this game. I have tried a few linkshells and even doing my own for a little bit here and there and well simply put, whether leading or following they can be such a hassle. One thing in particular that concerns me is Assault missions in Aht Urghan. I would love to raise my ranking but it can be a pain trying to get enough people to do them or online at the same time to do them.
Might I suggest a sort of Player Que for content that has a minimum party requirement like Assault. While pick up groups have their own set of headaches I admit, at the very least people who have a shared interest in doing them can join up regardless of shell without multiple series of annoying shouts, yells, etc as long as they meet the level requirements of the content for which they are signing up. This queue could be applied to ther content as well if desired but my only personal concern is Assault. I really would like to raise my mercenary rank so that I can extend the duration of my sanction and not have to run/warp back every so often because it has worn off, it is beyond annoying at this point and I've had enough of it.
This queue could also be used to introduce Player versus player content with level based matchmaking if so desire. Lord knows I would love a way to beat the holy crap out of most the people on this game and this forum that annoy me. XD You could even break it down into 1 on 1, party versus party(6vs6) linkshell vs linkshell(18vs18)