THE ENDING IS OPEN ENDED! We can all speculate that...
Spoiler:
That Lulu is still alive and he was the driver of that cart and here are my ways to back that.
A.When Nunnaly touched Lulu's hand she saw memories. That has happened like 3 time before,
1.C.C messing Suzu back in season 1.
2.Lulu touching C.C and then seeing some of her memories (in the same episode)
3.Suzu touches C.C again and faints this time (also in season 1)
B.C.C can only tlalk to the living when she contracts with them.
1.Marianne being the only exception because she geassed Anya and was living through her.
C.(lol C) C.C's last line was right Lelouch and if you take my first two counts into consideration then he has to be alive with C.C's code (now the question is how do you get rid of said Code and is there even a way to get rid of it?)
A.When Nunnaly touched Lulu's hand she saw memories. That has happened like 3 time before,
1.C.C messing Suzu back in season 1.
2.Lulu touching C.C and then seeing some of her memories (in the same episode)
3.Suzu touches C.C again and faints this time (also in season 1)
B.C.C can only tlalk to the living when she contracts with them.
1.Marianne being the only exception because she geassed Anya and was living through her.
C.(lol C) C.C's last line was right Lelouch and if you take my first two counts into consideration then he has to be alive with C.C's code (now the question is how do you get rid of said Code and is there even a way to get rid of it?)