Thoughts on what happens in the last scene in Caché

I.
Georges has died, and it's a vision from the afterlife

II.
School's in session—but Pierrot is home, listening to Eminem.

III.
Could it be that Majid's son has absconded with Pierrot?

IV.
Pierrot isn't there because he's with Yves. They're studying geometry.

V.
Pierrot isn't there because he's with his other friend—Jacques?

VI.
Pierrot has a swim meet. He's in the locker room.

VII.
Georges has picked him up. They're going to have dinner.

VIII.
It's all on tape. The instant you leave, it'll rewind.

IX.
That's Majid's son, talking to Pierrot. See? Then they part.

X.
Pierrot has been in constant cahoots with Majid or Pierre.