User blog comment:Toon Ganondorf/Series 10 Predictions/@comment-29558956-20171111095315/@comment-979907-20171111095541

That is correct that they are still interchangeable, but the photoshoot for the last two years has indicated which one will be prominently used in the episode.

As for what happens at Live Events, I can't really speak to them since I can't go to any.