Pally/War/Mage/Priest/Restosham in 2.3 - the new 2345?

Why is 2345 so dominating? Some people say it's because everyone synergizes so well. Some people say it's because heroism is OP. Some people say it's because you have a good balance of offense and defense. I say it's because blizzard did what they promised they were trying to avoid: they made damage scale faster than healing. What happened to "oh, with the implementation of resilience and greater stam scaling, you'll no longer see people getting 2-shot"? Yes, while mages can't PoM Pyro anything to pieces anymore, the damage scaling between just season 1 and season 2 is scary. Go back and watch old videos and its easy to see. Someone from a top team (I think from Rag Dolled or Pandemic, not sure) even said in a blog here a while back that 2345s are taking down Warriors - a traditionally poor burst target - down in globals without even locking out heals, damage is scaling so fast. Watching sck's old video and kollektiv's new one shows a world of difference in how much burst people see in a typical arena match. My personal theory is that 2345 became popular because a team that could perform fast target switches and pull incredible burst was more desirable than a team that put constant pressure on a target and either outlasted or tried to take them down in a window. My team runs Pally/Warlock/Mage/Priest/Warrior, and while we can usually split games with 2345s around our rating, good ones just burst us apart. Even if our CC is nearly perfect, they have so much burst that they can simply kill one of our players whenever a CC gets resisted, or put on DR, or gets a lucky break, or anything. I'm not complaining - we're working on strategies that better counter their burst potential and we're not really tanking our rating because of them - I'm just trying to explain why I think 2345 is such a dominant composition.



So if we take my hypothesis as true, and we assume that gear will continue to progress in the same fashion, damage will outscale mitigation from Season2 to Season3. In fact, it may be even more noticible, because many people have already hit their resilience cap, so there won't be much resil increase seen across the board.



So what will the "new" 2345 be? The old 2345? Possible - it will still be a powerful composition. It's also possible we will start seeing some more interesting 4dps combinations - double melee perhaps, what with the new rogue mobility changes? - but I'm not holding my breath.



I think that if any composition rises up to challenge 2345 (other than the 4dps teams that already have, of course), it will be mirror with resto shaman instead of elemental. What with the mage changes (10% more damage) and changes to healing/dmg&healing (resto shamans can still pull some decent burst), 2345 with resto shaman will have near the same DPS as the current 2345, if perhaps not quite as much as classic 2345 would have come Season3. But the big difference is that it's a true 2.5 healer composition, actually perhaps approaching a 3 healer composition. With the shaman as resto, the priest can afford to take a bit more of an offensive role, and when that burst starts to come out from the other team - well, it's a hell of a lot harder to control 3 healers than it is to control 2, and 3 heals is a hell of a lot more healing than 2 if you're assuming no cs/lock/earthshock/whatever. Also, you're denying the opposition one of the more attractive targets in a 2345 - the elemental shaman - since resto shamans are ****ing annoying to kill, and it's not like you're stopping their dps or their heals by going on him.



But I've never played 2345, so I can't really say that I'm right. So those who have: why wouldn't the above composition dominate everything come 2.3 changes?