Allara and I briefly talked about guild perks in this game. Not sure if they will change them at all before release, but after looking through them a little further I do agree it is a little lacking. Knowing how Rift is with changes right now and how good their Dev's seem to be on making things work well, I can see these changing some before release.
Also, I am not sure if some of you have played around with a talent calculator yet, but if you go here it has a nice one for you to play with.
Remember, you can have 4 roles (3 souls per role). So it leaves it pretty much open to be anything you want to be in this game in a given class. I am still reading up on gear changes once you change roles, but from what I see so far.....gear doesn't matter "too" much. If you go from a dps warrior to a tank (for example), you will need a 1 handed weapon and shield (unless you go void knight, then you don't need or use a shield).....but other than that is seems to be all talent driven so gear isn't the end all be all of importance to be able to be effective in a role.