I created a thread on the US Battle.net Warlock Forums and decided to share it with MMo-Champ.
Here are some changes to the class that I thought of that could help developers for our class.
Developers usually look around the class forums during expansion times to see what we want and here is what I feel we need. Im going to break it down with all three specs.
[ul] Remove Malefic Grasp and make Shadow Bolt / Drain Life our filler again.
Create a Glyph of Malefic Grasp turning our Drain life to have the same visual as malefic grasp.
 Return Haunt to the way it worked in cataclysm and remove the soul shard requirement. Instead, have soul burn modify it.
 REMOVE SOUL BURN: SOUL SWAP. Please, it's unbalanced and this is the reason for most of the MoP Drama in the first place.
 Make Unstable Affliction Cleave whenever it ticks. It's unstable! So if it cleaved it would make sense.
 Give us back Soul Harvest. It was a spell every warlock had to love. It generated shards and healed us.
 Curses are cool, but they feel a bit clunky. Having to always apply Curse of The Elements in pve is annoying. Just make it a passive aura.[/ul]
 At lower levels shadow bolt has a 1 second cooldown, which turns into 2.3 seconds at 90. This causes caster form to feel very clunky.
 Bring back the old Demonic Leap, and create a glyph for our current one.
 Metamorphosis , In my opinion should become a stance like shadow form. The new 100 talent that causes touch of chaos to generate fury should be baseline. Make a minor glyph that turns the meta stance to the dark apoth wings. Dark apoth was false hope for warlock tanks anyways.
 Honestly, Destruction is amazing this expansion but alot of people still miss old aspects.
Tier 15 - This in my opinion is a good tier.
Tier 30 - Demonic Breath should become baseline, and replaced. It doesn't compete
with the others.
Tier 45 - This also seems to be a good tier.
Tier 60 - Alot of people have problems with burning rush in PvP. Other than that, its pretty good also.
Tier 75 - Grimoire of supremacy was a good idea, but too many people missed their felhunter. Make this glyph increase our base pets damage and create a glyph for the new pets, or create an item that changes our current pets.
Grimoire of Service - It's not really an interesting choice. Most people choose it because they either like their old pet, or use it when their demonology for the extra spin.
Grimoire of sacrifice is good.
Tier 90 - It's good, but Kil'jaedans cunning should become baseline and replaced.
Of course most of these are what I want, so you can leave your opinion on what you want.
What do you want for warlocks in Warlords of Draenor? Whats your opinion on these changes?