For a while I have wanted to do a Warcraft fan art. Thrall was one of my favorite characters from the Warcraft games and had very distinctive features compared to the other orcs so he became the victim of this fan art.
If it is to there then they might add some content. Burning Crusade did not end after killing Illadian which would have been the last boss, they added Sunwell before the end. The original version they kept adding content up till the the expansion, like AQ and Nax. One of the main reasons Nax got pushed up to lvl 80 was because hardly anyone got to raid it at lvl 60 because they released Burning Crusade only a few months after Nax was put out, a very small hand full of guilds even got to fight the last boss.
figure 3-4 months of Deathwing, then they release new content and go 2-3 months of that before the next expansion.