I'm still maintaining that Linderman is Bennet's boss. Remember, the character we've seen hasn't been given a name yet. Recall how they said in an earlier preview that we would meet Claire's real dad, but they didn't show a face. It ended up being Nathan. I think it's gonna be the same thing here.
What happened to the girl that Matt and Ted were associated with? What's her deal?
Also, if you recall, Simone said to Issac, "You don't paint the future. You create it." It just sounded like she was trying to re-assure Issac, like usual. Judging by the preview, she knows a lot more than we've been shown thus far. I can't help but think that there's some truth to what she said. (But if that's the case, Peter also inherited this power...)
The bomb is going to go off. Issac painted it, Hiro saw it. Nothing that somebody has seen in the future in one form or another has been stopped. It ain't gonna happen in this case. Issac is gonna die. (apparently thanks to Sylar, judging by how he was killed) At the very least, Peter and Hiro will survive the blast. ("You look different without the scar")
There is something I am still wondering, though. We have yet to find out how saving "the cheerleader" (nobody said it was Claire) will "save the world". I don't think Claire / Sylar / anyone else with healing would be able to survive being asploded, torn to bits, or even so much as having their brain chopped up. Would Claire have died if Sylar did his usual routine of power-stealing? If so, Sylar would die from something similar, thus not dooming "the world". And besides, if Sylar did get the power, and Claire does not get killed in the process, it wouldn't exactly be world-threatning. Nah, I think the true meaning of those words is something much, much more immense.
Just a few crackpot theories for you. :P