Allright...
I'm %100 positive sure rightnow, it's just a fake plot leak hehe. cuz I knew Neo's gonna meet again with Merovingian. i saw in the trailer Merovingian was snapping his fingers. Merovingian always wear a ring on his left hand but in the trailer the ring was on his right hand so it's just a mirror effect. I compared the fingers of Lambert Wilson, who was a guest on a recent French television show, with the image. Nail and finger structure was exactly the same hehe.
Believe what you want to believe. Everything you have written is wrong
The person snapping their fingers in the trailer is
Neil Patrick Harris who has set that to move everything into Bullet Time to trap Neo