Well they’ll probably do more Sneak Peeks, but as that was shown at D23 and has been leaked, would think they’d “officially” release it too.
Here’s something from the AskLana that might be of interest though:
Lana’s reveal on ASKLana does rule out Hook as Regina’s LI that’s been promoted. She says something like she has yet to meet the character, but maybe the audience will meet him first, or already met.
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“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass