I like that. I'm just going of this one bit with no real context, but on the trailer at exactly 46 seconds, Kirk looks royally pissed and intense. It would be great if we saw that from Kirk, having that burning obsession.
Also, with the whole 'touching the glass' bit from the japanese trailer, it looks more like Spock is safe and is comforting someone else. Just the way the 'non spock' hand is placed and spocks hand approaches. It could very well be Kirk.
Killing kirk off in the sequel? I'm all for a Kirk death if done right (looking at you Generations

) but to do it in only the second one? They would have to bring him back in the third. How? Well, all guess work with no real context. Yay for speculation
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Also, on a side note, just a little something I threw together for my facebook cover pic. Not bad for a 5 miute jobby (if I do say so myself)