Originally Posted by Black Guardian:
“unless she decided enough was enough...having one's family executed because of a long running feud between The Doctor and The Master might push Martha over the edge”
Originally Posted by CameraObscura:
“I dont think Marthas going anywhere for a few series yet ”
Just a thought but what if Martha blamed the Doc for her family's execution and turned against him - that way she could become a recurring enemy in Series 4 which the Doctor really doesn't want to harm because of his guilt and he still deep down thinks of her as a companion.
Keeping up the Buffy comparisons we know RTD likes, she could almost become an Angel/Angelus type character - obviously not as a vampire and maybe not quite as close a relationship though