Pretty sure that clip of Emma in the apartment with the dreamcatcher was simply a recycled clip pulled from the episode “Manhattan”, and it is not a new clip. That promo had a few other old clips mixed in, too.
Like others have said, it’s definitely a new shot. It’s staged completely differently, (In Manhattan her hand comes up behind the dream catcher as she’s walking towards it, in this new shot, you only see the blur of her arm as she’s reaching up when she’s already standing there), she’s dressed differently (the blur of her arm is red, and she’s wearing a red jacket in 312, was wearing a black one in Manhattan), it’s lit completely differently, (was a shadow covering half her face in Manhattan), and someone noticed just the other day that in the promo clip, there are a few busted strings in the bottom left corner of the dream catcher, (perhaps because it’s been left in an apartment that’s been uninhabited for over a year now, so the whole place may well be set up to look uncared for and unkempt). Basically, there’s no way it can be a recycled clip from Manhattan.
Here’s the wider shot that shows the hole in the bottom left corner…
