While I'm fine with Thrall as a character, I felt his personal story had reached a dizzying high and had fallen back in a complete arc - bringing him back feels both unnecessary and forced. I'm all for an interest new turn on the character, but I have a sneaking suspicion that we're not going to be getting that once all is said and done. It's good to see him again, but I'm of the mind that this will ultimately pan out to be an unnecessary cameo created for purely ulterior purposes.