Seriously though; Thanks for this! Really cool that you are taking an active role. Here are some of my thoughts to add.
PHASE 1:
The main mechanic seems to be the Miasma(?) shield mechanics that is applied to the raid. I watch a video, the one linked by Kay in the Raid forums, that talked about there being 3 levels of shielding and something about that being important to the healers. Also, he mentioned something about making sure that you can tell who has what shield buff (i.e. that you healing frames are set to show that...) There was also some tips about pre-healing by letting the tank pull from a max distance so and waiting a bit before the DPS starts...
Arcing Smash/Breath of y'saarj is probably the next most important mechanic. He does a random cone attack every 15 secs I think. It's clearly marked on the ground every should move out of it. The center of each smash needs to be marked with a marker because after the 3 smash he does Breath of Y'saarj which basically fries each arcing smash location. Basically we move to safe areas away from the marked location. Guess some people are going to need macros to do markers?
Imploding energy summons void zones on the ground. Not sure what the number will be dependent on how many people we have. Basically it will damage the person standing in the zone but if no one is in the zone then it does raid-wide damage. This == BAD. Basically we need one person to stand in each zone. It's why we need to evenly spread out. Mostly this is up to the ranged to do since the time is short (explode after 4 sec) . I can probably help out with the closer one since i have a lot of movement abilities.
Last thing is Seismic slam. Basically a random person is targeted, and get's shot up in the air. This will hit anyone in 5 yards of the player so its why we also need to try to space out 5 yards. DBM has a range finder for this.
Some general things to consider about phase 1:
He always does and imploding energy in between the 3rd arcing smash and the breath of y'saarj. So we need to not move to the safe zone too early so that we can still be spread out to pick up the implding energy.
Also, we need to try to figure out someways to orient the room the so that people can remember the approximate areas that they should be...i.e some statue or something...
Healers should probably be 5 yards off of the melee spread evenly across each 1/3 of the room??? Since they can cover more area that way than being towards the outside of the circle?
PHASE 2: After 2 mins (I think, when his bar fills) he goes into blood rage.) This happens right after the 2nd breath of y'saarj. It lasts 20 secs. The absorb mechanic goes awhile and normal healing starts.
We need to stack in front of him on the tank since he does huge damage attacks that is split between everyone standing in it.
Only time you will not be in the stack is if you have this displaced energy debuff placed on you. This is is a strong DoT that will explode after 9 secs or when it is dispelled. The strat here is for the people with the debuff to move out of the group so that they can be dispelled by a healer. From the videos i watched looks like you only need to get to about the middle ring to be dispelled. It's also important that the person be at full health before they are dispelled.
After this phase he goes back to phase 1 and nothing different happens except he does 25% increased damage. This happens after every blood rage phase but you cant really go beyond 2 phase 2s because his hard enrage timer is 6mins
Bloodlust at the start!
Here is the one page quick guide that Kay also posted in the strategy sub-section of the raid forums. Thanks Kay, these are really awesome and should at least be looked at if people are strapped for time.