Imo they should just buff Flame Shock DoT dmg and searing totem. Not really big changes for PvP, but if done right, it could fix a whole lot of our missing consistent dps in PvE. Maybe even roll the buffs into Shamanism so enhancement/resto don't benefit from them if Blizzard wishes to not buff those specs.
OT: I'm currently not raiding seriously (guild drama...), just pugging my way through normals. So my opinion might be disregarded, but generally speaking, I'm at around 75-80k dps on fights like Feng or Imperial Vizier Zor'lok. At an ilvl of 485 that's not too bad I guess. However, I don't seem to see any mistakes in either your priority list (except for Fulmination, that should be at #3, not too sure if it shouldn't be under EB though^^) or your opening, although I use EB before Flameshock (generally 2 seconds before the pull, so I don't waste time casting it after the boss is pulled).