It's all AU.

After talking to the Doctor, Paul went exploring this place he was stuck, still vaguely hoping that he'd find a stargate, or simply a way back home. Or back to where he had come from before he'd gotten whatever it was in his head. He stopped outside a shop, looking in at the uniforms on display, a small frown on his face. They looked familiar, somehow.

The Doctor had spent a week or so resting, making the most of the gorgeously soft bed he'd staggered into, and drinking tea from room service.

Eventually, he'd worked up the energy to get out of bed, get dressed, and venture out of his room. He glanced towards the restaurant as he crossed the lobby, but he couldn't quite face normal food yet. He'd go for a walk instead.

He opened the door of the hotel, and stared. He'd expected a quiet, sleepy little town. What he'd got was New New New New New York.