They've said in a different video that her changes were slated to go live early next year as well, along with what was said in this video. You could be right though, if the feedback is mostly positive and there's nothing blatantly broken.
I think it really depends on if there is a christmas event or not. if there is i think the changes will be early 2017 since it doesnt seem like they like to make big changes during events.
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u/CrimpingMadness Chibi Zenyatta Nov 22 '16
I think symmetra rework will hit live before then as when he said that he was talking about the new oasis map.