First, highly doubt party composition is what they're changing


BUT--and that's a big "but"--if it were, the end result is the same. The queues are long right now not just because there's only two slots for dps. The queues are longer because there's an enforced trinity system where one of the roles required to participate is the tank role, which is least played/desirable. To top it off, this wait time is aggravated depending on what kind of content you're queuing for and when you're queuing for it. An excellent example of that is the current 24man raids of this expac vs the old ones. I guarantee you 10/10 times, the current 3 will pop faster than the ones before them because they're relevant and what they offer is still in need by many. In addition, they queue still reasonably fast for dps because the queue system is for all types of dps. Start putting dps sub roles to the queues and guess what? We're right back to square one, with people now lamenting when is caster dps is gonna fill the role slot. Or a ranged. Or a melee. You get the point.