This doesn't really have anything from the old series in it, but I didn't know where else to put it, so...
"Well. That was... exciting," Aislinn said, picking her way over the rubble. "God knows how this'll be explained."
"Terrorists, probably," the man strolling next to her remarked.
Aislinn looked up at the amazing, mysterious man who'd blown up her job and saved the world. His ginger hair was streaked with soot and ash flakes covered his expensive-looking black suit, but he strolled elegantly through the ruins like he hadn't a care in the world. She wasn't sure if she believed he was an alien, exactly, but she knew he was unlike anything she'd ever seen before.
"So, what now?" Aislinn asked, casually. They had reached the end of what had once been a business building and stood on the curb of an empty street.
He turned, elegantly, like a dancer, and suddenly he was staring at her and his eyes were on fire and his passably handsome features were alive with emotion. "Aislinn, how would you like to..."
"Yes?" she gasped in anticipation.
And then suddenly the fire died, the face snapped back to expressionless mode, and his eyes turned deep and sad. "Never mind, it's nothing important," he said in a toneless voice. "See you around, I suppose." He turned, and set off down the pavement with his ground-eating stride.
"Wait!" Aislinn yelled, running after him. She saw him turn into an alley and speeded up. Accelerating, she rounded the corner and stood there, panting.
The alley was a dead end. He was nowhere to be seen. But Aislinn heard a strange noise and felt an alien wind on her face, and for a moment she saw the Universe. Then it was gone, and she was crying. "Doctor! Doctor, come back! Please!"
There was no answer.