A lot of information is available about the new raids and such, but I couldn't quite find exactly what I was looking for in one place. I've done a little digging and come up with the following information. The data is taken for several different sources, so I take no credit for any of it, except for compiling it in one location:
A) Minimum Item level required
346 (less means more wipes than progress)
B) Minimum dps per dps chars (melee and ranged)
My elaborations on data taken from world of logs statistics under following assumptions:
-raid composition: 2 tanks 2 healers 6 dps chars
-tanks do approx 50% dps of dps chars
-all data for 10 Man normal, data for each raid taken for the first boss
=Baradin hold Boss Argaloth
minimum total raid dps: 72 K
minimum dps per each dps character : 10 K
=Bastion of Twilight Boss Halfus
minimum total raid dps: 105 K
minimum dps per each dps character : 15 K
=Blackwing Descent Boss Magmaw (2 tanks 3 healers 5 dps chars)
minimum total raid dps: 77 K
minimum dps per each dps character : 13 K
=Throne of the Four Winds Boss Conclave of Wind
minimum total raid dps: 55 K
minimum dps per each dps character : 8 K
Throne of the Four Winds: