Unfortunately, unlike Lord of the Rings, Warcraft writing has always been terrible, so it's unlikely this movie will be any different.
I'm very hopeful I am wrong, though.
Reading the Lord of the Rings is no treat. It's like half an encyclopedia combined with short stories, songs and a crappy screenplay inbetween.
I fond the Hobbit much more enjoyable, but perhaps it was because it was meant for children and I was younger at the time I first read them both, but even now I prefer to reflect on the Hobbit.
Warcraft has always had pretty cheesy writing, but I think they have tried to have more symbolic and "show rather than tell" (generic english teacher quote) styles in their writing as of late. Although the characters were poorly developed and hard to care about, even Garrosh should have been a more emotive experience, more drawn out.
A two patch raid would have been amazing, Garrosh must have had legions behind him, would have been easy to work in Lei Shin and Garrosh's tertiary forces into the same thing and began the story earlier, but alas it went better than I thought. I was just hoping for more Garrosh interference and less troll raid time.