Or is the clip we heard taken out of context? Could the Dalek be saying something like 'the Doctor is regenerating the mcguffin/weapon/power source?' Obviously the Doctor will regenerate in this episode but I wonder if this is just a clever bit of misdirection?
if the spoilers that surfaced a little while back are true then yes this could be a nice little misdirection and ties in with The Doctor's line about if they want his life they have to come and take it
Yeah, there's no way to get a Colin Baker-centric regeneration story out of "Uh-oh, something's locked onto the TARDIS! It's pulling us in! Ow!" (Hits head really hard and regenerates.) That's pretty much the entire story right there.
I stand corrected. I guess the opening of "Time and the Rani" was vague enough that there could've been another explanation for his regeneration.
Probably because that's the easiest way to describe to her family who this guy she's been spending all this time with, and whose motorcycle she drives. And probably because in her mind, it's true. And I also think that the Doctor has feelings for her too, as has been hinted at throughout her run on the show. One of the reasons the regeneration could be really sad/weird for Clara.