I figure, considering David Tennant's age, and past willingness to reprise the role, and the age of the show, it's a safe bet he shows up a few more times, even if they had killed him off.
That's the fun of shows like this - literally nothing is off the table. It's like kids playing games at recess, making up rules as they go. There's a bit more to it than pure "lawlessness", but the rules can always give way to fun. I love it.
I figure, considering David Tennant's age, and past willingness to reprise the role, and the age of the show, it's a safe bet he shows up a few more times, even if they had killed him off.
That's the fun of shows like this - literally nothing is off the table. It's like kids playing games at recess, making up rules as they go. There's a bit more to it than pure "lawlessness", but the rules can always give way to fun. I love it.
There are rumors of a UNIT spin-off, there could be some way to tie Tennant into that somehow.
There's been rumours of a UNIT spin-off for decades, though.