Who's going to replace Daniel Craig as the next James Bond?

Yes, in fact, a couple of other 00s appear in a couple of the Connery films, maybe one of the Moore films, but I don't think another 00 has been in any of the films since the Timothy Dalton one that starts with the sabotaged exercise on Gibraltar (The Living Daylights).
You had 006 (Sean Bean) teaming up with 007 (Bronson) in the opening scene of Goldeneye. In fact he became the main villain.