Selection from a 2010 Guardian article regarding the Doctor’s regenerations:
Edict that Time Lords can regenerate only 12 times before they die has been quietly ditched.
The moment comes in the CBBC spin-off show, The Sarah Jane Adventures, which stars former companion Elisabeth Sladen as Sarah Jane Smith. Matt Smith, who plays the current Doctor Who, guest stars in a two-part episode called The Death of the Doctor, to be screened on October 25 and 26. While the Doctor and Clyde Langer, played by Daniel Anthony, are in the process of outwitting spooky vulture undertakers the Shansheeth, Clyde asks how many times he can regenerate. The Doctor indicates that there is no limit. The action continues.
Guess the Doctor will not be dying in this Saturday’s finale …or ever! I wonder what’s going to happen!
Well he has no cap on regenerations, but he can die.
Still rather good to know!Source: fuckyeahdoctorwho