Just saw this while browsing reddit:
https://www.reddit.com/r/Overwatch/comments/4tn3vr/sombra_hint_in_new_dev_update
I always enjoyed following along the TF2 ARG's, it would be really neat if Blizzard did something similar. Hopefully we'll have some time to adapt to the recent changes first though!
Edit: also just realized a dev update was out explaining some of the decisioning behind the patch: https://www.youtube.com/watch?v=evghkilg2eQ
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