I recall reading a blue post that mentioned Blizz devs were trying to differentiate the 3 warlock specs in such a way that each use a different primary spell despite spells like Shadow Bolt being used by Affi but being in the Destro tree. Well I got to thinking, what if they overhauled one of the trees completely? Demonology for example becomes the "Demon Hunter" tree.
Under the new model a Demo warlock would get some deep talents that allow them to boost their physical survivability, they would dual wield fist weapons, swords or daggers and they'd get melee focused procs to enable casting in the heat of battle. Metamorphosis would become the trump card cooldown of any encounter. Additionally, the warlock's summoned demon would gain abilities that enable a deeper interaction with the warlock in melee range (for example: granting 5% parry if the warlock is attacking the same target, etc.). This type of warlock would not require his/her pet to tank for them as their survivability is in the passive buffs gained by tag teaming with the demon as well inherent in the talent trees later tiers. Their melee damage would be based on a formula using weapon damage and spell power to deal shadowfire damage.
Just a pipe dream really, but a fun thought to share.
Ideas? Recommendations?