I'd give it about a week, two max, before some fan-editor fixes up the security guard scene.
And I now sadly have to conclude, outside of what we already saw, that the Memory Wall footage has long since either been lost or deliberately junked. Otherwise it would've been here. Disappointing, but not unexpected. Nobody was anticipating actually using this stuff in home video back in the 70's.
Then again, given what we're seeing from the Roddenberry Archive lately, all may not be lost in that regard...