Count me in the camp who just wants a normal send-off, where it occurs at the end of the episode. I'd like Matt to get a nice full story to depart in. We'll have plenty of time to get to know Peter Capaldi as the Doctor, no need to rush it.
Conversely, Capaldi should have his own introduction story. If it's crammed into a part of an episode, you won't get nice scenes like we did in 11th Hour.
I think it's better for both to do it the traditional way.