Re: Are regenerations still capped at 12?
If they do go beyond the 12 regeneration limit, best not to explain it. Just leave it as a mystery of the universe. After all any attempt to explain it is going to annoy some part of the fan base (true so will not explaining it)
But in the case of River, she got her regeneratgions in part because she was concieved whilst traveling through the vortex. Who knows perhaps all those centuries of travelling through the vortex have had an impact on the Doctor. Whilst most time lords stayed at home.
On the continent of wild endeavour in the mountains of solace and solitude there stood the citadel of the time lords, the oldest and most mighty race in the universe looking down on the galaxies below sworn never to interfere only to watch.