
For years, GW party leaders have had to ask their fellows if they were ready before they went on to start whatever they're doing. We used to have to count all the "1"s we'd get in reply and have to find out who's the 8th that wasn't ready. :P. Years later, ANet was awesome and listened to the community and finally gave us the ready/not ready buttons, but that only solved half the problem!
The ready/not ready button only cuts on the "1" part, but the leader still has to ask for people to set their status. It seems like a natural evolution to install a "Ready Check" button that a party leader has access to. When you press this button, a Yes/No alert dialog box should pop up with a sound notification saying that the leader has initiated a ready check, are you ready?
Of course, I play WoW and fellow players will notice that this feature is an unorginal idea, but then again I never claimed it as original

Let me know what you think!