Fans love seeing the Doctors meeting their other regenerations and having adventures together. It connects to our childhood play sessions of crossing toyline or just seeing how the Doctor reacts to his past and future selves (and the humor of how poorly they get along). Sadly Christopher Eccleston isn’t on board with that. Maybe it has something to do with the terrible history and hopefully not the same ego as Tom Baker when it comes to how they do their Doctor. It sounds like he won’t do the next anniversary reunion special, which is disappointing, and I guess even though he’s returning for Big Finish audiodramas we won’t get to hear him work with previous Doctors either. Well, at least there’s the comics.