Doubtful.

Unless its the most amazing video ever, no... and even then...
he's already been caught in so many lies.

Like someone else pointed out, WC is anonymous.
So, even if he shows us a video
of some unbelievably good carving skills, how would
we know its him and not someone he paid?

That said, I don't think there will be a video because
he can't find someone to show carving skills.  And
if he does, there will be more ridiculous excuses
about the delay (my computer crashed etc).
...and even when the video does surface, it probably won't
really show carvings that look like laser engravings.