I've just finished watching Raw, and I've gotta say, I marked like Slyfox after a Cena title win. The monster Kane is back, and that's the only Kane that's worth anything. Kane attacking Michael Cole might not make him into a heel, but Jerry Lawler is something of a cult hero. He's got a surprisingly large fan base. He's really quite popular and having Kane attack him could start a heel turn off with the fans. Although, it's a shame JR isn't still around, Kane got a pretty big heel reaction from setting him on fire last time around.
Now, as for who Kane is actually talking about, I still think it might be 'Taker. Obviously this time around he left on his feet instead of in a grave or flaming casket, but it might simply be that Kane's mind has snapped, and he doesn't know how Undertaker keeps surviving. I mean, Kane has attempted to kill his half-brother at least twice (flaming casket at Royal Rumble 1998, Buried Alive at Survivor Series 2003) and both times, UT has come back and whipped Kane's ass. I mean, look at Wrestlemania XX, it was basically a squash match. Maybe Kane has snapped and he thinks that UT should be dead.
A second theory could be Paul Bearer. I mean, the last time we saw Paul Bearer, Undertaker was burying him alive in Heyman's concrete crypt. Now, the storyline of the Concrete Crypt match was that if 'Taker didn't lay down for the Dudleyz, then his confidant, Bearer, would be killed. And, the last words 'Taker said before pulling the lever on the truck were "Rest In Peace". However, we were then told on SmackDown that Bearer was "severly injured" and in a "life-threatening condition", with problems including collapsed lungs and crushed bones. However, we were never given a final outcome to the story, so in effect, Kane's asking the question we all were about Bearer - is he dead or alive?
And obviously, there's Vince McMahon. Now, I see two outcomes that revolve around the Vince McMahon storyline. One is that either Kane is concerned about Vince's health, either that he hopes Vince isn't dead due to some secret between the two of them, or that he hopes Vince is dead, possibly meaning that Kane was the cause of the Stage Collapse. The other option is that, when Vince called out Paul as he was rescued from the wreckage, it was something to do with Paul Bearer, which simply ties in somehow with the above reasoning on Bearer, with Bearer (and Kane?) being the cause of the Stage Collapse.
Which one is it? Well, my money goes on it being Bearer. Kane has had no storylines with Vince, so it doesn't make sense for him to be anything to do with the stage, and it doesn't make sense for it to be Undertaker, as that would bring UT back on Raw, while he still has a score to settle on SmackDown with Edge. So yeah, for me, Paul Bearer is alive, Kane, he's alive.