After the patch, I noticed I was missing a large amount of spell power.
Ran some test with some guild warlocks and myself.
After patch I had 1,400 spell power when I usually have 1,900+.
Remove ALL Buffs on your warlock.
Unequip all gear - your spell power will be at 0.
Equip all gear - your spell power will be higher again but close. (1,644).
Repeat UnEquip all gear and Equip gear (VERY SLOWLY And watch slowly for correctly spell to go up) will yet again boost spell. (1,722).
Ok, next get raid buffs. hmm was at (1,988 spell power) what was going on!
Unequip all gear and Equip all gear spell power is now at (2,144)... still wonder why I was still below 2,600 spell power.
Now redid FelArmor again and finally (2,613) spell power where I usually always at.
Holy Cow was this a mess, all of our guild warlocks spent a good 30 minutes figuring out the bugs till we finally got the correct spell power back to where it used to be.
Hope this help all other warlocks that will run into this issue. Good Luck