Allyn Gibson wrote:
A Paul McGann regeneration scene would be awesome.
No, it wouldn't.
There would be no context for it. There would be no story leading up to it. There would be no aftermath to it. It would exist only to check off a box and, as a result, would be the least effective regeneration since Sylvester McCoy pretended to be Colin Baker.
It could within the context of the Time War and telling the story of the birth of the Hurt Doctor. The aftermath would be that the Hurt Doctor was born in battle and ready to do things that went against the promise in his name.
It wouldn't be as effective a send-off for McGann as it would be an introduction for Hurt, but at this point actually seeing McGann as the Doctor again would be a sort of closure of it's own.