All of the patches for World of Warcraft have a little cinematic machinma where a major character in the patch narrates its back-story and what's going on. So I've decided to write what I think the trailer will be like. (Yes I used quotes from the actual fights on purpose as it seemed to fit).
Energy. Power. My people are addicted to it. Their dependence made manifest after the Sunwell was destroyed. All I ever wanted to do was end that addiction… I wanted to save my people no matter the cost. Even if it meant enslaving them to some blind, half-night elf mongrel. But he was only a stepping stone to a much larger plan. Yet the very sin'dorei I did all this for, my people, turned against me, betrayed me, killed me…
At least, that's what they think. Tempest Keep was only a minor setback to the Master's plan. The Isle of Quel'Danas is where those buffoons should be looking. Yet, by the time they find out… it will be too late. The Sunwell will be re-activated! Kil'jaeden will come to purge this world!
I am Kael'thas Sunstrider! Lord of the Blood Elves. Welcome to the future… a pity your too late to stop it. No one can stop me now. Selama ashal'anore!