I appreciate that it's highly unlikely that there would ever be a reoccurrence of this as you can't just go closing down a busy section of the East Coast main line willy nilly, but it could look quite effective if LNER could somehow 'borrow' 43002 from GWR (Though that power car could be becoming part of the national collection fairly soon), though that's even more than less than unlikely.
In fact it would be pleasing if all the current Swallow liveried stock could be brought together somewhere - 91119, 43185 and 47828, I'm not sure if there's currently a 37 in the livery and I'm discounting 50031 as being inauthentic, even though it does look fantastic - though I can't envisage an event that would bring them all together in the same place.