Despite driving through a house, both House and his car haven't suffered much, if any, damage. House, who wasn't even wearing a seatbelt and thus should have been ejected through his front windshield and died, simply opens his door, steps out, closes it behind him, and picks his way across what's left of Cuddy's dining room towards the small group who are not, for whatever reason, running away from the guy who just tried to kill them all with his car. No, they just stand there and let him approach them. House hands Cuddy her hairbrush and walks out, looking quite pleased with what just happened. To Wilson, who is gaping at him and holding his wrist, he says he does, indeed, feel better. And then he just walks away. No one tries to stop him. The police apparently take their sweet-ass time to show up, since it's daylight now and it was dark when they were there. This gives House ample opportunity to escape. Just as Wilson predicted, he's in a bar. But it's not the darkest hole in New Jersey, and House isn't exactly getting trashed out of his mind. He finishes his drink, tells the bartender he's had enough, and asks what he should do today. "I don't know. Go home?" the bartender says. House smiles and shakes his head. "Not tonight," he says. And that's when we see that he's on a beach somewhere tropical surrounded by sun, surf, and happy beachgoers. He takes a walk on the beach, which is suddenly empty of people, and that's it for Season Seven.
So. The question now is, what the hell just happened? Did House actually drive a car through Cuddy's house and escape to some tropical paradise? If so, how can the show possibly recover from that? House can't return to the United States without going to jail for what should be a very long time, and they can't just have the Cottages and Wilson all move to Mexico or wherever he is and practice medicine there. Also, who wants to watch House do anything now that he just tried to kill four people (five, if you count Rachel, who he didn't know was in the room or not)? Yes, they weren't in the room when the car went through it and yes, he saw them leave the room before he decided to drive the car through it. But that doesn't really matter. He had no way of knowing that they didn't walk back into the room in between the time that he walked away and crashed through the wall. It's still attempted murder.