The Matrix

[Morpheus]

1. Some kind of graphic glitch could match it. What will broke your head is.. "Why the broken mirror became a perfect mirror?". Maybe is another reference to "Through the looking glass".

3. Maybe they detected him as invalid and sent to recycle bin. I mean, because we saw that somepeople can disrupt the signal (running man from animatrix), and the machines might sent them to death (it wont be always a HVCF waiting for the one being "dropped").

4. I believe that it wasnt going to be more films but the $$ is always interesting to companies. I think that it's not talking to the other humans, but to the "system" itself, as it should be hearing all through the events hapening inside (as when someone sees the red pills, and that someone is "adquired" by an agent).

On the other hand, i dunno why the matrix didnt make severe changes instead just the deja vu cat scene. All can be explained like a methane gas cloud that confuses their minds! (xD!). Or some flu, whatever you want....