This is just a small one-shot about Ten after he left Eleven and Clara. It'll probably be heavily edited in a few months, but here's what I have right now.
"We need a new destination. I don't want to go."
I mumbled the last few words halfway to myself as I stepped back into my waiting T.A.R.D.I.S. As the worn, blue door clicked closed behind me, I slowly slipped off my favorite long, tan coat and tossed it carelessly onto one of the forks in the sand-colored columns situated around the outer ring of the console. As usual, the metal floor clanged beneath my footfalls and the T.A.R.D.I.S. rumbled a greeting, her sound so familiar to me. The green-glowing console beckoned me closer, calling me to a thousand different places and a billion different times, her endless possibilities captivating me as much as they did the first time I laid eyes on her.
"'Ello, old girl," I whispered, taking a minute to stare at her. Even though it had been centuries since I 'borrowed' her, I still couldn't get over my wonder at her beauty. The very last Type 40 T.A.R.D.I.S. was in my hands and I loved her to bits. She may have been well past her prime, but she was perfect to me. This room had been with me for years and years, always a constant and always there for me. My Future Self might have the cool twisting thingies, but this was my T.A.R.D.I.S. Mine and mine alone.
Although I knew that this face wouldn't be the one to see it, my Future Self's prophecy chilled me to the bone. The idea of seeing where I was buried scared me, I'll admit. Nine hundred years and I'd never really thought about my grave. Now it plagued my mind to no end, though it wouldn't bother me for much longer. The twisted timeline was too complex and confused, as soon as I took off I would forget every moment.
Trenzalore. For some reason, it felt like I'd known all along where I'd die. Like somewhere, in the deepest depths of my mind, the knowledge had laid there for centuries until awoken by my Future Self's words. My grave, the place where I'd be buried and forgotten over time, faded into legend, at best nothing more than a story to entertain the children. The Doctor, the man in his blue box who fought monsters and saved worlds, the man who destroyed lives and tore planets apart, and the man who lived in constant torment.
Out of habit, I began to circle the T.A.R.D.I.S. console for comfort. One of my hands slipped into a pocket and the other drifted down to gently stroke the warm metal of the T.A.R.D.I.S. She hummed in response to my touch, feeling my tumultuous thoughts and trying to respond. She couldn't talk but we comunicated anyways.
"Wasn't this a surprise, girl?" I asked her, smiling faintly. She gave her reply in the typical way, rattling and clanging her agreement.
"What d'you think about Trenzalore, eh? Good a place as any to die I s'pose. He didn't say how it happened though, hope it's good." I stopped pacing around the consol and flicked a few switches, powering up the now-lit time rotor.
"I won't remember this," I said in a hushed voice, "I know my own fate, my own destruction, and I'll forget it." I sighed and shrugged, "Probably better that way though." Pausing before I spun the dial, I glanced back towards the door. Out there was my Future Self and I had so many questions for him. Do I ever get to see Rose again? How long did I have until regerneration? As a Time Lord, I knew better than to ask. There's only so much I should know, even though I'll forget it as soon as I leave. Wouldn't want to mess with the timeline too much.
I tuned back to the T.A.R.D.I.S. console and spun the timeworn, silver dial. The whirling sound that I loved so much started as soon as I threw back the main lever. I grabbed on to the edge of the consol for support as the normal quivering and shaking began.
"Let's go forward in time for this round, girl," I told the T.A.R.D.I.S., " Trenzalore may be my future, but I can escape it a little longer. Allons-y!"