It seems and it isn't a bad thing that 5x tank are doing very well, while I haven't seen much for traditional tank/3 dps/healer. I do see 5x also somewhat being an option.

This expansion looks to have a lot of random damage, stuff to avoid - aoe all over so clumping as a group and navigating as well as being able to take or heal that damage is the number one priority.
With that in mind what healer is best suited to handle this if attempting a traditional setup. Last time I played I had Druid tank, 3 DK for dps and a resto shaman. This worked but the level of aoe and dodging seems to be much higher and unforgiving.

I'm sure I'll figure out the styles of each healer, but hoping to get some insight to put me on the right track.